Papua New Guinea's Prime Minister Michael Somare.

Port Moresby, Papua New Guinea - A retired colonel who attempted to take over Papua New Guinea's military and ordered the prime minister to step down has been arrested.

Police spokesman Dominic Kakas says Yaura Sasa was arrested on Saturday night (January 28, 2012) in a suburb of Port Moresby, the capital. He says Sasa has yet to be charged with a crime.

Sasa led a small group of soldiers in a mutiny Thursday in which the military's top commander was briefly held under house arrest. The mutiny was part of a power struggle in which Prime Minister Peter O'Neill and former Prime Minister Michael Somare claim to be the rightful leader of the South Pacific nation.

Sasa demanded that O'Neill step down within a week to make way for Somare, who appointed Sasa defense chief after being removed from office. - Sapa-AP