click to enlarge Image via St. Louis Metropolitan Police

Suspects in a Delmar Loop robbery escaped in this Toyota Camry, police say.

click to enlarge Image via St. Louis Metropolitan Police

Suspects in a Delmar Loop robbery were recorded on surveillance video along with their getaway car.

A violent armed robbery in the Delmar Loop has police searching for four suspects.Three of the crooks, all young men in hooded sweatshirts, ambushed a 26-year-old woman shortly before 3 a.m. on July 11 as she walked just west of Skinker Boulevard on the 6200 block of Delmar, according to police.Two of the attackers sneaked up on her from behind and held a gun to her head before trying to wrench her purse away. The woman held on, and the men dragged her briefly before they managed to kick her away.The thieves then sprinted to a white sedan where a fourth suspect was waiting to drive them away.Police are still looking for the robbers nearly a week after the brazen stickup. On Monday, they released still shots from a surveillance video that shows grainy images of three of the suspects outside the getaway car. Investigators have identified the sedan as a newer model four-door Toyota Corolla, believed to be from 2014 to 2017. The car was missing its front license plate.The woman bruised her knee during the frightening encounter but didn't suffer any other physical injuries, police say.