Parts of the Thai capital Bangkok resembled a battleground after clashes between troops and protesters.
The military moved in to ends days of massive anti-government protests that have the left the country in political chaos.
Petrol bombs and rocks were hurled at lines of soldiers who tried to re-take a busy road junction.
Tyres were set alight and several buses commandeered by the protesters to blockade roads into the city centre.
Soldiers used water cannon to try to put out the fires.
They surged forward, firing shots above the heads of protesters - and in some cases into the crowd.
At least 70 people, including 23 troops, were injured in the clashes.
The soldiers moved in on Government House, where several thousand protesters are camped.
The violence comes on the day Thais are marking the start of their three-day new year holiday.