Victims of the attacks are still fighting for compensation
Kenya and Tanzania are preparing to mark the 10th anniversary of deadly bomb attacks on their US embassies.
Ceremonies in Nairobi and Dar es Salaam will remember victims of the co-ordinated attacks, which killed more than 200 and injured at least 4,000.
The commemorations are due to start at 1000 local time (0800 BST), about the time that the bombs exploded.
In Kenya, a manhunt is currently under way for a member of al-Qaeda still wanted in connection with the attacks.
It is believed Fazul Abdullah Mohammed evaded a police raid at the weekend in the coastal town of Malindi, where he was staying with friends.
Twin commemorations are being held in Nairobi - one at the US embassy and the other at a memorial park in the city, which Prime Minister Raila Odinga is expected to attend.
The park is on the site of the former US embassy where 213 people, including 12 Americans and 34 local embassy staff, died.
In Dar es Salaam, where 11 people were killed and 70 injured, a ceremony will be held at a memorial park.
Many victims say they are still waiting for compensation for their loss.
"This being the 10th year, nothing has changed in that there is no support from so many angles (such as) the Kenyan government, the American government," said Paul Wala, head of the victims' association.
"We blame them (the US) for the bombing. Without their embassy being here in Kenya we would not have been bombed," he told AFP news agency.
Douglas Sidialo, 38, was blinded by the Nairobi blast.
"Many have died from the injuries, many have died because they don't have medical support, many have died because they cannot meet their obligations," he said.
The US says it has already spent about $42m in medical treatment, school fees, counselling, and reconstruction help for thousands of Kenyan and Tanzanian victims.