U.S. President Donald Trump said in a Truth Social post Saturday that he was sending a hospital ship to Greenland, alleging many people there are sick and not receiving care, even though both of the U.S. Navy’s hospital ships were undergoing maintenance at a shipyard in Alabama at the time he posted.

Publicly available ship tracking data shows that one of the ships, the USNS Mercy, went out to sea Tuesday. It is not clear from the public data where the ship is headed, and Pentagon officials did not comment when asked about its destination.

The Associated Press