BREAKING: Emergency declared at Kings Cross Station as passengers evacuated. The station is one of London’s busiest and was packed with commuters making their way home. Emergency sirens and sounds have sounded through out the Underground station as people evacuated. Tubes will not be stopping at London’s major station following the alert, according to reports. Pictures posted online show crowds of people huddled outside the capital’ busiest stations. The evacuation will send the Tube lines into chaos as rush hour commuters attemp to make their way home from work.