Why is Mexico City full of zombies?!

If you need a scary Halloween costume idea, well then look no further than this video!

This is footage taken of a zombie walk that took place in Mexico City on Saturday.

Thousands of families turned out for the event, which happens every year in the Mexican capital.

It provided people with a perfect chance for a selfie but it's not all spooky nonsense - people also used the event to donate rice, beans and other canned items to a food bank.