A teenage boy was stabbed to death after a mass brawl broke out at a beach party, sparking a police probe . Officers were called to Irvine Beach in Ayreshire where dozens of youths had gathered at the dunes last night following reports of a disturbance, where the boy was found seriously injured. He was taken to blue-lighted to Crosshouse Hospital but tragically died in the early hours of this morning. A probe has been launched by Police Scotland's major investigations team who have called on