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The Associated Press
Syrians stand near the body of a man local residents say was an activist who was tortured to death by the Syrian government and dumped by the side of the road in Idlib, northern Syria, Sunday, Feb. 5, 2012. The commander of rebel Syrian soldiers said Sunday there is no choice but to use military force to drive President Bashar Assad's regime from power as fears mounted that government troops will escalate their deadly crackdown on dissent after Russia and China vetoed a U.N. resolution aimed at resolving the crisis. (AP Photo)

BEIRUT — Activists say Syrian troops are heavily shelling neighborhoods in the restive central city of Homs.

The Local Coordination Committees activist group says Monday's bombardment hit a makeshift hospital, causing casualties.

The Britain-based Syrian Observatory for Human Rights says at least 12 people were killed in the intense shelling.

"We did not sleep all night," Majd Amer, an activist in Homs, said by telephone. Explosions could be heard in the background.

The shelling comes two days after another heavy bombardment.

Activists said Saturday's shelling was the deadliest incident of the uprising, killing more than 200 people in a single day. The regime denied any bombardment, and there was no way to independently confirm the toll.