Fairfax County police said they arrested a 59-year-old man who allegedly impersonated a police officer as part of a ruse to rob an elderly man.

Rudolph Victor Curtis, of Arlington, was charged with robbery, malicious wounding and impersonating a law enforcement officer.

Police said that around 10:20 a.m. Wednesday a 93-year-old man was assaulted and robbed as he got out of his vehicle in the 5700 block of Leesburg Pike in the Baileys Crossroads area. The robber approached the man, identified himself as a police officer and showed what appeared to be credentials, police said. The robber then demanded the man’s license, struck him several times and took his wallet before fleeing.

Several witnesses came to the victim’s aid and provided police with information that they said led to Curtis’s arrest.

Detectives have connected the case to two other similar cases, police said. On June 9, a robber stole cash from an 85-year-old man’s wallet but did not strike the victim, police said. On July 24, cash was stolen from an 81-year-old man, they said.

Anyone with information on the case is asked to contact Crime Solvers at 1-866-411-8477 or email at www.fairfaxcrimesolvers.org.