It follows an earthquake in the Alaska Peninsula.
A tsunami alert's been issued for a number of islands in the Pacific - after an earthquake struck the Alaska Peninsula.
The warning applies to the US territories of Guam and the Northern Mariana Islands.
The quake measured at least 7-point-2 in magnitude.
Thu Jul 29 06:23:22 UTC 2021 event picture pic.twitter.com/UQwlRCmRlk
— NWS Tsunami Alerts (@NWS_NTWC) July 29, 2021