BOSTON (CBS) – Boston police have released additional details about a carjacking and shooting involving a U.S. postal worker in Dorchester on Friday.

The USPS driver told police that he suspect jumped into his truck in the area of 35 Bailey Street just after 6 p.m. and demanded the victim give him “the draw” before pistol whipping him in the forehead.

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The suspect continued striking the driver before shooting him in the wrist.

After being forced to strip down out of his letter carrier uniform, the victim managed to escape through the rear door.

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The truck crashed into a snow bank a short distance away. Detectives were able to determine the suspect took off from there in a rented UHaul rental van, which they tracked down at a nearby gas station. A police report obtained by WBZ-TV indicates that there was blood on the van and that the two men in that van were taken in for questioning. A source told WBZ-TV that both men do have criminal records. Neither man has been named as a suspect.

No charges have been filed.

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Postal inspectors are offering up to $50,000 reward for information leading to the arrest and conviction of the suspects involved in this case.