Two Turlock men must have been experiencing a fierce craving for caffeine when they attempted to rob a Manteca Starbucks at gunpoint.

Arrested were Edin Martinez, 19, and Mark Padilla, 21, both of Turlock. They were arrested on suspicion of attempted robbery, conspiracy and firearms violations.

The incident began around 3:45 a.m. Wednesday when a masked suspect started banging on the doors with a gun at a closed Starbucks, near Highway 120, Manteca Police Sgt. Jodie Estarziau said.

The employees that were in the shop at the time ran to the back of the store to safety and called the police department.

Having no luck at the front door, the suspect went to the drive-thru and banged on that window, Estarziau said.

The suspect gave up his attempt to enter the store and got into an idling Acura waiting for him. The Acura was speeding out of the parking lot just as several patrol cars arrived at the scene.

Officers pursued the vehicle onto Highway 120, where they were able to perform a high risk traffic stop and take the two occupants into custody at gunpoint, Estarziau said.

In the back seat of the Acura officers found clothing, including a mask that matched the description of the robbery suspect. Upon further search, officers found two semi-automatic handguns.