Pope Francis expressed support on Sunday for 18 fishermen held in Libya, weighing in on a standoff between Italy and the administration of Khalifa Haftar, one of the North African country’s two rival leaders.

“I want to say a word of encouragement and support for the fishermen who have been held in Libya for more than a month, and for their families (who) are hoping to be able to embrace their dear ones soon, Francis said at his weekly blessing in St. Peter’s Square.

Libyan patrol boats detained two Sicilian fishing boats on Sept. 1 for allegedly fishing in territorial waters and brought the crews to Benghazi in Libya. The crews, made up of Italians and Tunisians, were accused of operating in Libya’s territorial waters.

The fishing grounds have been disputed since 2005, when Libya’s then ruler, Muammar Qaddafi, unilaterally extended Libyan territorial waters to 74 nautical miles offshore from 12. Haftar, who controls eastern Libya, is trying to enforce this.