Officials say a Manx fishing vessel has sunk.
The Castletown-registered Sara Lena was outside Ardglass last night when the incident happened.
Coastguards say the boat ran around on rocks just after midnight.
Portaferry lifeboat and a coastguard helicopter took part in a rescue operation, and all crew were safely rescued.
A Facebook user in Ireland posted video of the stricken vessel.
YouTube channel features Island's hand dryers
Snow and ice warning for Mountain Road
No plans for self-driving car laws, says minister
Pulrose 'Escobar' to spend more than 15 years in prison
Two Manxman sailings cancelled
Children 'left at risk' after new law adjourned by MHKs
Commissioners issue plea to dog owners over fouling
Section of TT course to shut for this weekend