MOSCOW >> An uncrewed Russian supply ship docked at the International Space Station has lost coolant pressure, the Russian space corporation and NASA reported Saturday, saying the incident doesn’t pose any danger to the station’s crew.

Roscosmos said the hatch between the station and the Progress MS-21 had been locked so the loss of pressure didn’t affect the orbiting outpost.

“The temperature and pressure on board the station are within norms and there is no danger to health and safety of the crew,” it said in a statement.

The initial statement from Roscosmos left it unclear whether the entire cargo ship or just some of its systems lost pressure, but Sergei Krikalev, head of Roscosmos’ crewed programs, later clarified that there was depressurization of the craft’s coolant loop.

NASA said its specialists are assisting their Russian counterparts in the troubleshooting of the coolant leak.

— The Associated Press