RAWALPINDI, Pakistan — An antiterrorism court here placed Pervez Musharraf, Pakistan’s former military leader, under arrest on Friday on charges related to the death of former Prime Minister Benazir Bhutto, adding to a tangle of legal woes that have hobbled Mr. Musharraf’s hopes for a political comeback.

The order changes little for Mr. Musharraf in immediate terms. Mr. Musharraf, a retired army general, is already under house arrest at his villa on the edge of Islamabad, the Pakistani capital, in a case involving his detention and firing of senior judges after imposing emergency rule in 2007.

Mr. Musharraf was brought to the Rawalpindi court under tight security on Friday. He was ordered to return on Tuesday, said Salman Safdar, one of his lawyers.

The prosecution’s case rests on a statement by Mark Siegel, a Washington lobbyist and friend of Ms. Bhutto’s, who alleges that Mr. Musharraf made a threatening phone call to her before she returned to Pakistan in 2007 from self-imposed exile, Mr. Safdar said.