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.
Mountain Road to shut this afternoon
Local authority reveals number of commercial parking spaces leased
Charity to offer winter assistance
Glencrutchery Road to close southbound today
17 Bus services could be cancelled today
Public debate to explore plans for Manx economic growth
Grants available for Christian churches
Motorcycle club want to hear from potential MGP newcomers