WARSAW, Sept 11 (Reuters) - German Chancellor Angela Merkel made clear in talks on the Nord Stream 2 gas pipeline with Polish Prime Minister Mateusz Morawiecki on Saturday that Ukraine must remain a transit country for Russian gas after 2024, when a deal between the two expires.

"I have made clear that it is our concern that Ukraine remains a transit country for Russian gas," Merkel told reporters at a news conference with her Polish counterpart. (Reporting via Madeline Chambers in Berlin; Editing by Alex Richardson)