Soldiers firing live ammunition and rubber bullets fatally shot a Palestinian man and at least 89 people were hurt in riots set off by the death of an Arab detainee.

Arab reports put the number of injured in the Gaza Strip violence at 120, which would make it one of the highest daily figures during the 34-month-old Palestinian uprising.The clashes underscored a rise in Arab-Israeli tensions since the Oct. 8 Temple Mount killings of 20 Arabs and subsequent stabbing deaths of three Israelis in Jerusalem.

The unrest began after soldiers informed the family of Attiyah Abdel Atti Zanin, 36, in the Gaza village of Beit Hanoun that he had hanged himself in prison.

Zanin was detained 13 days ago for questioning about activism in the Palestine Liberation Organization, Israeli and Arab reports said.

His body was found in Gaza City prison Friday night, dangling from a rope made of blankets, Prison Services spokeswoman Shulamit Meiri said.

She said the authorities believed the death was a suicide since he was alone in a cell and there were no other signs of violence on the body. But Zanin's family demanded an autopsy.

Rumors also spread through the village of 11,000 that Zanin had been killed by soldiers, spurring youths to take to the streets where they stoned Israeli troops, Arab reports said.

Troops opened fire, killing Mohammed Izzat Abdullah el Bassiouny, 36, the reports added. The army said Bassiouny was 29.