A Cormorant helicopter was able Tuesday morning to rescue a mariner who was seriously injured on a Portuguese fishing boat southeast of St. John's.

The Russian man fell about five metres on Monday.

An attempt to rescue him around 8 p.m. on Monday had to be scrubbed because seas were too rough for a helicopter to work safely.

The Joint Rescue Co-ordination Centre in Halifax said the mariner was successfully hoisted on Tuesday morning.

The man is now receiving medical treatment at hospital in St. John's. 

The fishing vessel is about 250 nautical miles, or about 460 kilometres, southeast of St. John's.