Goalflashes and major incidents (all times GMT):
2008: A mammoth penalty shoot-out comes to an end. All 22 players scored at the first attempt, but Samuel Eto'o puts his second over the bar and Didier Drogba scores to give Ivory Coast a 12-11 penalty.
11-12 Didier Drogba puts Ivory Coast into the last four.
11-11 Samuel Eto'o fires over with his second shoot-out penalty.
11-11 Ivory Coast keeper Jean-Jacques Tizie scores.
11-10 Cameroon keeper Souleymanou Hamidou scores.
10-10 Marco Zoro scores. It is down to the keepers.
10-9 Stephane Bikey scores for Cameroon.
9-9 Didier Zokora holds his nerve for Ivory Coast.
9-8 Rudolph Douala scores for Cameroon.
8-8 Arthur Boka scores for Ivory Coast.
8-7 Alioum Saidou scores at the second attempt. His first shot was saved but the keeper was penalised for coming off his line.
7-7 Christian Koffi Ndri keeps Ivory Coast in it.
7-6 Cameroon skipper Rigobert Song finds the top corner.
6-6 Blaise Kossi Kouassi cooly strokes the ball home.
6-5 Jean Makoun's penalty just eludes Jean-Jacques Tizie.
5-5 Arouna Kone keeps Ivory Coast in the tie.
5-4 Albert Ze Meyong scores for Cameroon.
4-4 Emerse Fae sends the goalkeeper the wrong way.
4-3 Daniel Ngom Kome scores for Cameroon.
3-3 Bakari Kone slots home a cool penalty.
3-2 Thimothee Atouba puts Cameroon back in front.
2-2 Kolo Toure scores for Ivory Coast with a great penalty.
2-1 Njitap Geremi smashes the ball home for Cameroon.
1-1 Didier Drogba scores for Ivory Coast
1-0 Samuel Eto'o puts Cameroon ahead.
1940: The penalty shoot-out starts with Cameroon's Samuel Eto'o taking the first kick.
1935: Penalties The end of extra-time and so, as with Nigeria versus Tunisia, the match will be decided on penalties.
119 mins: Ivory Coast's Christian Koffi Ndri is almost through but, under pressure, his shot is weak and easily saved.
118 mins: The tempo of the match has slowed down again - with penalties a distinct possibility.
112 mins: Cameroon win a corner, which Njitap Geremi crosses into the penalty area only for Ivory Coast keeper Jean-Jacques Tizie to easily collect.
106: The game starts again.
105 mins: The first half of extra-time ends with the scores still level, though at least there has now been two goals. After an awful first 90 minutes, extra-time has so far been a great improvement.
104 mins: Emmanuel Eboue is booked and will miss the semi-final if Ivory Coast win this game.
101 mins: Cameroon win a free-kick 21 yards from goal, which Njitap Geremi drives into the Ivory Coast goal.
95 mins: GOAL Cameroon 1-1 Ivory Coast
Albert Ze Meyong puts the Indomitable Lions level, slotting the ball past Jean-Jacques Tizie after Daniel Ngom Kome plays him in.
94 mins: The game has come to live, with Njitap Geremi smashing a shot against the crossbar from distance.
91 mins: GOAL Cameroon 0-1 Ivory Coast
Substitute Bakari Kone puts his team in front with a right-foot shot from 14 yards. The chance came seconds after Arouna Kone smashed a shot against the crossbar.
1901: Extra-time begins with Cameroon kicking off.
1856: Full-time Cameroon 0-0 Ivory Coast
The end of normal time and, as with the earlier game between Nigeria and Tunisia, the tie goes to extra-time.
89 mins: Thimothee Atouba almost snatches victory for Cameroon but his long-range strike is tipped over the crossbar.
87 mins: The pace of the game has slowed down. Both teams seem to have resigned themselves to extra-time. Ivory Coast coach Henri Michel brings on Bakari Kone for Yaya Toure.
82 mins: Ivory Coast defender Kolo Toure makes superb contact with a free-kick from very long range, but his strike flies over the Cameroon crossbar.
80 mins: Cameroon make a change, with Rudolph Douala replacing Salomon Olembe.
77 mins: Ivory Coast finally get in behind the Cameroon defence but by the time support arrives Didier Drogba's options are limited and the chance is gone.
71 mins: Drogba has been heavily involved over the last few minutes and a corner drops invitingly for him but he scuffs his volley.
69 mins: Ivory Coast striker Drogba finally gets a shot off on goal but Souleymanou Hamidou saves.
65 mins: Drogba lays a free-kick off to Arthur Boka, whose strike hits the wall. Ivory Coast have struggled to create any openings close to goal.
61 mins: Drogba attempts an over-head kick that never really threatens the Cameroon goal but is deflected out for a corner. The subsequent cross is far too close to Souleymanou Hamidou, who easily collects.
57 mins: Cameroon's Daniel Ngom Kome forces a save with an angled strike from the edge of the area.
55 mins: Cameroon almost score. Rigobert Song makes a great contact with Njitap Geremi's corner but his header goes over the crossbar.
54 mins: The minutes tick away. The match continues to a be a poor, fragmented affair with no real flow at all.
49 mins: Ivory Coast win a corner after another swift attack. Lots of pushing and shoving the box, but when the ball does come in it is quickly cleared.
47 mins: Challenges continue to fly in, so no change from the opening 45 minutes. There is no time at all to dwell on the ball.
1806: The second-half starts with the Elephants, wearing orange, kicking off.
1749: Half-time Cameroon 0-0 Ivory Coast
A physical, tight opening half comes to an end. The only decent chance has fallen to Samuel Eto'o, but his shot was saved.
45 mins: A Didier Drogba free-kick strikes the wall and is comfortably saved by Souleymanou Hamidou.
39 mins: The first clear chance of the game falls to Cameroon's Samuel Eto'o, but after cutting inside he is thwarted by a great save from Jean-Jacques Tizie.
33 mins: It has been a physical game so far and Cameroon's Pierre Webo is stretchered off to be replaced by Albert Ze Meyong.
36 mins: Kolo Toure is booked for a crunching late tackle on Samuel Eto'o. There is nothing subtle about the Ivory Coast's method of trying to contain Eto'o.
31 mins: Both teams waste chances. First Arouna Kone makes a poor contact with a shot for the Ivory Coast and then Indomitable Lion Samuel Eto'o fails to connect properly with a free header.
25 mins: Didier Drogba has a sight of goal after Andre Bikey misses a long punt up field, but the Cameroon defender recovers well and makes a crucial challenge as the Ivory Coast striker prepares to shoot.
20 mins: Niggling tackles, rather than clear openings, have been the story of the game so far. Ivory Coast win a free-kick, but Rigobert Song heads the cross clear.
13 mins: Ivory Coast keeper Jean-Jacques Tizie collects a cross. He has looked nervous in the opening minutes and unsure of his handling.
8 mins: Ivory Coast striker Didier Drogba heads wide after a good cross from the left. The Elephants have looked composed in possession so far and seem to have settled faster than their opponents.
3 mins: There are signs in the opening minutes that Ivory Coast are going to try and counter the threat posed by Samuel Eto'o with an extremely physical style of play.
1701: The second quarter-final of the day starts with Cameroon in their familiar green, red and yellow, while the Ivory Coast are in orange.
1645 GMT: Cameroon defender Andre Bikey continues to deputise for the injured Raymond Kalla.
The Ivory Coast goalkeeper Jean-Jacques Tizie returns to the side after injury, while Aruna Dindane is on the bench, having missed all the group games due to the death of his young daughter.
Cameroon: 16-Souleymanou Hamidou; 8-Geremi, 4-Rigobert Song (captain), 23-Bikey,
3-Thimothee Atouba; 14-Alioum Saidou, 7-Daniel Ngom Kome, 20-Salomon
Olembe, 11-Jean Makoun; 15-Pierre Webo, 9-Samuel Eto'o.
Ivory Coast: 1-Jean-Jacques Tizie; 21-Emmanuel Eboue, 4-Kolo Toure, 6-Blaise Kouassi,
3-Arthur Boka; 2-Kanga Akale, 19-Yaya Toure, 5-Didier Zokora, 7-Emerse
Fae; 9-Arouna Kone, 11-Didier Drogba (captain).
Referee: Mohamed Guezzaz (Morocco).