MIAMI GARDENS, Fla. -

The FBI released photos of an ATM burglary that happened in Miami Gardens early Thursday.

The burglary happened at Wells Fargo Bank, 19500 NW 27th Avenue, about 3:50 a.m.

A crowbar was used to pry open a panel of the ATM where a hand grenade-type device was placed inside, said FBI agents. Several gunshots were fired at the grenade, which failed to detonate.

"A whole bunch of gunshots. I thought it was the back of my house," said Krystal Menendez.

Watch: Surveillance video

Bomb technicians later said the grenade was inert.

The FBI believes at least four people were involved in the burglary. The amount of cash stolen, if any, wasn't released.

Anyone with information on the burglary is asked to call the FBI at 305-944-9101.