In each instance, the crew rolled up to the stores on bicycles during the evening hours and stole items, damaged property and left without paying, police said.

Flash mobs of teens on bicycles have robbed at least 14 7-Eleven stores in the Los Angeles area since July, police say.

The LAPD said Tuesday that the parents of three teenagers who were allegedly shown in security video from recent flash mob-style robberies at convenience stores had brought their children to police stations so they could be arrested.