Mexico Pyramid Shooting

The historic Teotihuacan archaeological site became a scene of chaos on Monday when Julio César Jasso Ramírez opened fire on tourists.

Authorities revealed that the gunman appeared to have planned the attack to coincide with the anniversary of the Columbine High School shooting.

Six Americans were among those wounded in the spray of gunfire and subsequent falls as people scrambled for safety.

Mexican President Claudia Sheinbaum has promised a full investigation and called for stricter security checks at major tourist destinations.