Four people have been killed and two more injured in a shooting near Mexico's National Palace.
Police said an armed man entered an apartment building near the Mexican President's official residence, seeking to relieve himself.
When he was confronted by the residents he pulled out a pistol and opened fire, killing three people.
The gunman was later shot dead by the police.
President Andres Manuel Lopez Obrador was travelling outside of Mexico City when the incident happened.


Trump says he has agreed to two-week ceasefire with Iran
Israel issues new evacuation order for Tyre in southern Lebanon
Israel backs Trump's two-week pause on Iran strikes, says Lebanon excluded
Bahrain reports damaged houses in fallen debris incident.
Australia PM Albanese criticises Trump's rhetoric while welcoming ceasefire
