#RESCUE - An unconfirmed number of men from Ireland were among 22 people rescued from a sinking passenger boat in San Francisco Bay in the early hours of this morning.

KGO-TV News reports that the hull of The Neptune was punctured by a rock off Alcatraz around 9.15pm last night local time (5.15am this morning Irish time) and quickly began taking on water.

Matthew Rice was celebrating his bachelor party on the boat with 17 friends at the time - a number of whom has travelled from as far as Ireland - when "all of a sudden it was like boom, just the a big jolt and the next thing we knew the [US] Coast Guard boat came in and got us off," he recalls.

Crew member Rachel Smith, one of four crew on board the party boat, explained how the vessel had veered slightly off course due to a navigation error and hit an area known as 'Little Alcatraz', which resulted in two square-foot holes on either side of the rear hull.

All on board were taken to safety by the coastguard, and attempts were being made to bail the water out of the boat to allow its towing back to San Francisco overnight.