London: An additional 120 French police officers were sent to the terminal yesterday.
Meanwhile, British Members of Parliament are urging the David Cameron-led Conservative Government to take steps to ease the emerging crisis, the BBC reported.
Home Secretary Theresa May said new fencing was urgently being installed in Calais, and added that the possibilities of improving security at the railhead at Coquelles were being looked into to prevent people from entering the tunnel.
May further said that some migrants had reached Britain through the Channel Tunnel this week and their appeals for asylum were being considered.
She, however, did not clarify how many had arrived.
These fresh efforts were being taken in the wake of the death of a man after at least 1,500 migrants tried to enter the Channel Tunnel in Calais in northern France yeterday.
Several hundred migrants had to be escorted away from the tunnel`s freight terminal by the French police.