King Charles is remembering a tragic anniversary in London. On Monday, July 7, the King, 76, released a statement to mark the 20th anniversary of the 7/7 London bombings, which saw 52 people killed in 2005 after four suicide bombers attacked London’s transit system.

Fifty-two people died and more than 700 were wounded when four British men inspired by Al Qaeda blew themselves up on three subway trains and a bus on July 7, 2005.