Sentencing hearings have been postponed for the last of 11 men who have pleaded guilty to piracy for hijacking an American yacht off the coast of Africa.

Somalis Said Abdi Fooley and Abdi Jama Aqid were to be sentenced Friday in federal court in Norfolk. Piracy carries a mandatory life sentence.

U.S. Attorney’s office spokesman Peter Carr said Friday that no new sentencing dates were immediately available.

They’re among 14 men charged in the boarding of the Quest in February several hundred miles south of Oman. All four aboard the 58-foot yacht were fatally shot days later after negotiations with the U.S. Navy broke down.

Three men who prosecutors say are the ones that shot the Americans are facing murder and other charges that could carry the death penalty.