Egypt's prosecutor general has ordered the detention of former President Hosni Mubarak, ahead of an investigation into corruption and abuse allegations. Mr Mubarak, 82, is in hospital after reportedly suffering heart problems. His detention order will be in place for 15 days, state TV reported. His sons Alaa and Gamal have also been detained amid allegations of corruption and violence, police say. Mr Mubarak stood down in February after a popular uprising against his rule. Since then, tens of thousands of protesters have staged weekly Friday protests in Cairo's Tahrir Square, demanding that he stand trial. At least 360 people are thought to have been killed during the protests, as police opened fire and cracked down on the crowds. Rights groups say the figure is much higher. There are also widespread allegations of corruption and abuse of power under Mr Mubarak's 30-year rule. Sons pelted "The prosecutor general orders the detention of former President Hosni Mubarak and his sons Gamal and Alaa for 15 days pending investigation after the prosecutor general presented them with the current state of its ongoing investigations," said a post on the prosecutor general's Facebook page on Wednesday. The announcement came a day after Mr Mubarak had been admitted to hospital with heart problems, although reports indicated that he was well enough to undergo questioning. The former Egyptian leader had been keeping a low profile in Sharm el-Sheikh, a Red Sea resort, after fleeing to his holiday villa there when he was overthrown. Late on Tuesday, a crowd of about 2,000 people had gathered outside the hospital, demanding that the sons be arrested. As a police van with drawn curtains took away the two brothers for questioning, the crowd pelted it with water bottles, stones and their flip-flops, the AP news agency reported. On Wednesday morning the pair were transferred to Tora prison complex in Cairo, home to other fallen officials and and some of the country's most notorious political prisoners. Speculation that the younger son, Gamal, was being groomed to take over from his father helped to galvanise Egypt's protest movement. Gamal, an investment banker, was a high-ranking member of President Mubarak's ruling party. His close associates were billionaires and held top positions in the ruling party and the government. Mr Mubarak, along with his sons and their wives, have been banned from leaving the country. The family's assets have been frozen. In a pre-recorded audio message on Sunday, he broke his silence of the last two months to say his reputation and that of his sons had been damaged and he would work to clear their names. On Tuesday, Egyptian soldiers and police moved into Tahrir Square in Cairo and ended a sit-in by protesters demanding civilian rule and swifter prosecution of former officials. A military council has been ruling Egypt since Mr Mubarak stepped down. Source: BBC