President Barack Obama says U.S. forces assisted in a failed attempt to rescue a French citizen in Somalia on Friday.

Obama says the U.S. forces provided limited technical support to French forces leading the operation. The president says the Americans had no direct role in the assault on the compound where a French intelligence agent was believed to be held hostage.

French officials say the hostage is almost certainly dead. A French commando was also killed in the rescue attempt.

Obama disclosed the U.S. role Sunday in a letter alerting Congress about the deployment of U.S. forces.