The British company responsible for the Olympic security debacle is under pressure from human rights campaigners to sever its relationship with Israel's prison service after the mysterious death of a Palestinian, allegedly during questioning by Israel's secret police.

War on Want called on G4S, which provides services to the Israeli Prison Authority, to end all dealings with the Israeli Prison Authority (IPA) after lawyers for Arafat Jadarat, 30, claimed that an autopsy showed that he had been tortured while in Israeli custody.

Mr Jadarat, who died in Meggido Prison last week, was given a mi