SILVER SPRING, Md. (CBSDC) — A 58-year-old man suffered serious injuries when he was stabbed by another patron at a Silver Spring post office Thursday afternoon.

Police believe the incident occurred following a confrontation between the two shortly after 2:15 p.m. Wednesday at the post office located in the 13200 block of New Hampshire Ave.

The victim got up to the postal window, but was told he would need to fill out more paperwork before completing his transaction. He was allowed to finish filling out the forms off to the side of the window and then come straight back to the counter.

A 67-year-old man who was waiting in line apparently thought the man was cutting in line when he returned the window. He exited the post office and waited in the vestibule for the victim to leave.

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The suspect then stabbed the 58-year-old victim at which point two female postal employees intervened. At least one of the women deployed pepper spray in an attempt to subdue the attacker.

Authorities believe their intervention may have saved the man’s life.

The suspect was able to get away in his vehicle. However, a Montgomery County Police officer spotted the suspect in his car and pulled him over roughly one mile away at the intersection of New Hampshire Avenue and MD Route 29. He was then taken into custody.

The victim’s injuries are described as serious but non life threatening.