Cairo (CNN) -- Military police poured into Cairo's Tahrir Square on Wednesday in hopes of stopping clashes between protesters and police, as the Egyptian government said a truce had been declared through a group of clerics. The truce lasted about three hours. CNN saw military police lined up, separating protesters from the police. But after a period of calm, some protesters began throwing rocks at soldiers. Riot police responded with tear gas; the unrest continued late Wednesday. Some army soldiers tried to stop security forces from shooting tear gas, but they were outnumbered. On state-run TV, the government said religious scholars were on their way "to form a human shield between the protesters and the security forces."
@highlight
Egypt's grand mufti calls on police to put down their weapons
@highlight
The death toll in five days of violence has risen to 35, officials say
@highlight
The number of injured stands at 3,250, Egyptian Health Ministry says
@highlight
U.N. human rights chief calls on Egypt to stop "the clearly excessive use of force"
Crowds have packed @placeholder since Saturday, calling for the nation's military rulers to step down immediately.