An Islamic extremist who admitted killing two U.S. airmen at Frankfurt airport last year has been convicted of murder.

The state court in Frankfurt found 22-year-old Arid Uka guilty Friday and sentenced him to life in prison for the March 2 attack on Afghanistan-bound servicemen as they boarded a bus at the airport.

Uka, an ethnic Albanian from Kosovo, killed Senior Airman Nicholas J. Alden, 25, from South Carolina, and Airman 1st Class Zachary R. Cuddeback, 21, from Virginia.

News agency dapd said he was also convicted of attempted murder and serious bodily harm for wounding two other servicemen and taking aim at a third before his pistol jammed.

The court found that Uka bears "particularly severe guilt," meaning he won't immediately be eligible for parole after 15 years as is usual in Germany.

THIS IS A BREAKING NEWS UPDATE. Check back soon for further information. AP's earlier story is below.

FRANKFURT, Germany (AP) _ A German court is set to deliver its verdict in the trial of an alleged Islamic extremist who has admitted killing two U.S. airmen at Frankfurt airport last year.

The Frankfurt state court is to rule Friday in the case of the 21-year-old Arid Uka, an ethnic Albanian from Kosovo, who has confessed to killing the two men at point-blank range before wounding two more airmen and taking aim at a third before his gun misfired.

Uka is charged with two counts of murder for the March 2, 2011 slaying of Senior Airman Nicholas J. Alden, 25, from South Carolina, and Airman 1st Class Zachary R. Cuddeback, 21, from Virginia.

He also faces three counts of attempted murder. Prosecutors have called for a life prison sentence.