A pair of robbers remain at large after breaking into a Bitcoin ATM at an Irving gas station and spraying a clerk with bear deterrent.

Less than a week later, a similar robbery took place at a gas station in Mesquite.

The first robbery happened around 10 p.m. March 22 at the Chevron in the 7200 block of North MacArthur Boulevard, at State Highway 161.

Surveillance footage shows a man in a hoodie walk in and spray the clerk with bear deterrent — a type of pepper spray stronger than what's sold for self-defense against humans.

A second man follows and hands a crowbar to the first robber, who pries open the ATM. The accomplice stands guard near the register while the clerk wipes his eyes.

The pair then leave the store with cash containers from the ATM and speed off in a gray or silver SUV. Police did not disclose how much money was stolen.

Police described the robbers as black men in their late 20s to early 30s.

The first was about 6 feet tall and 180 pounds, and was wearing a gray and black Nike hoodie, blue jeans and black and white sneakers.

The second was about about 6 feet tall and 140 to 160 pounds, and was wearing a black jacket, sagging jeans over blue underwear, maroon sneakers, blue gloves and a gray Oakland Raiders cap.

Six days later, a similar robbery took place at the Exxon in the 2200 block of Oates Drive, near North Galloway Avenue in Mesquite.

Around 11:30 a.m., a man wearing a gray hoodie and a red Nike cap sprayed the clerk with pepper spray. A second person then broke into the store's Bitcoin ATM.

The pair then fled in a vehicle, police said.

Irving and Mesquite police are working together on the incidents, authorities said.

Anyone with information about the robberies is asked to contact Irving police at 972-273-1010 or ipdcrimetips@cityofirving.org, Mesquite police at 972-285-6336 or Crime Stoppers at 214-373-8477.