Three Polish brothers on a day trip to Tenby ended up being rescued by the emergency services after becoming marooned on a disused island. The alarm was raised at 3.30 pm on Saturday when a call was made to the Coastguard Operation Room at Milford Haven. The resort's Coastguard Rescue Team and the local police quickly attended the secured buildings on St. Catherine's Island where three Polish brothers, on a day trip from Tumble, had become marooned by the incoming tide. They had climbed onto the island through the caves, but found their exit barred by locked gates. The coastguards, however, managed to release the gates and the youths were led to safety from the dangerous area. The incident has led to a warning from the emergency rescue teams. Said Angela Smith, of HM Coastguard, Milford Haven: "St. Catherine's Island is privately owned and is not accessible to the general public, hence the locked entrance gates. "The buildings on the island are in a severe state of decay and highly dangerous. The island also becomes completely cut off with the high tides. "Although the island looks tempting, do not climb up onto it as the chance of injury or prosecution for trespass are high."