LILLE, France: Four Iranian migrants making a rare attempt to reach Britain by boat from France on Saturday were rescued in the nick of time after their vessel took on water and was close to capsizing, officials said. Rescuers were only alerted after one of the migrants made it back to the beach at Sangatte in northern France before dawn. He was in a dangerously cold state and asking for help for his four compatriots. A search was launched and the boat with the four men was located with the help of a Belgian army helicopter, the French coastguard said. Gilles Debove, of the local police union, said it was “extremely unusual” for migrants to try to reach Britain by the sea route. The president of a local organization supporting migrants, Christian Salome, told AFP he feared a rise in the number of attempted Channel crossings due to tighter security around the port of Calais making it more difficult for migrants to smuggle themselves across in lorries.