FOUR stowaways, who secretly boarded a ship from Nigeria have been detained by immigration officials.

The men, aged between 18 and 25, were discovered on board the ship in the Milford Haven waterway at around 5pm on Friday, October 20, after the captain raised the alarm.

The men, who had sailed from Lagos, were on board a ship due to dock at Valero.

They were detained by Border Force officers and interviewed by police, before being transported to custody on Thursday, October 26.

The Home Office is currently investigating whether they have a right to remain in the UK.