In southern England, two passenger trains collide in a railway tunnel, killing twenty-four and injuring hundreds

Two trains collided deep inside the Clayton railway tunnel just outside Brighton in southern England on the line to London.  They were carrying a total of 589 people in twenty-nine carriages.  At around nine o'clock in the morning, the second train's locomotive crashed into the rear carriages of the first, killing at least twenty-four people and injuring 176 others. The cause seemed to be the confusion caused with signalling when three large trains left Brighton for London almost immediately after each other.  (By John Osborne)