The wardens at the Negev Desert Israeli jail on Monday morning ransacked and threw gas canisters into Palestinian prisoners' tents, and severely beat them, reported the Palestinian Centre for Studies.

More than 250 prisoners have been reported injured.

The center has been investigating developments in the situation since the early hours of Monday morning.

Tents in two sections of the prison compound were torched, said the centre, completely demolishing all the belongings of the detainees.

Prisoners telephoned the centre to report that an Israeli Nehshon unit stormed the Palestinian sections of the jail at 2am armed with clubs, shields, sonic bombs and tear gas canisters.

The tents were set ablaze by the gas canisters and sonic bombs.

Later on Monday Palestinian Legislative Council (PLC) member Issa Ahmad Abdel-Hamid Qaraqe told Maan News Agency that more than 250 prisoners were injured, some of them seriously. He said that "the brutal suppression reached eight prison compounds, and special Israeli forces chained the prisoners and attacked them."

Qaraqe said that some of the wounded had not yet been evacuated to hospitals. He reported that prisoners sustained broken legs, as well as chest, eye, and head injuries.

According to Qaraqe', the aggression lasted from midnight to 5am.