Fifth Harmony singer Ally Brooke Hernandez ambushed by fan on stage in Mexico

This comes days after she was grabbed by a fan at the airport in Monterrey

Fifth Harmony singer Ally Brooke Hernandez has been ambushed by a fan on stage while performing in Mexico.

The 23-year-old was in the middle of performing when a fan suddenly ran onto the stage and attempted to hug her but ended up grabbing her hair at the Auditorio Banamez on Thursday night.

Hernandez fell to the ground but quickly picked herself back up and continued her performance with the band. Security promptly removed the fan from the stage.

This is the second time Hernandez has had an incident with a fan during her trip to Mexico. Earlier in the week she was grabbed by a fan at the airport who appeared to attempt to take a selfie with her when the band arrived in Monterrey.

Hernandez warned fans she was okay after the incident, writing on Twitter: “Just to let you know, I am okay after the airport incident. Please be careful and gentle so nobody gets hurt. That was scary. Thank you!”

“Monterry, I couldn’t be happier to be here!” she continued. “It’s been a dream of mine since I was little. My favourite singer Selena Quintanilla had many beautiful performances here. And now I get to perform in this city! I am beyond honoured and proud.”

Fifth Harmony formed on the second season of The X Factor USA in July 2012 and are one of the most successful bands to emerge from the show.

A representative for Fifth Harmony declined to comment on the matter.