A man donning a fake beard robbed two Chevron gas stations in Burbank over the weekend, and police believe he was also involved in two robberies at a frozen yogurt shop in recent weeks.

The man — described as white, 6 feet tall, 160 pounds, and wearing a fake, dark beard — entered the Chevron station at 2501 W. Olive Ave. at 8:40 p.m. Friday, flashed a handgun in his waistband and demanded money, said Burbank Police Sgt. Darin Ryburn.

The suspect pulled out a bag, demanding the 22-year-old clerk fill it with cash. After getting the money, the robber fled on foot westbound on Olive Avenue and then northbound on Frederic Street, Ryburn said.

At 6 p.m. the following night, the suspect entered the Chevron at 439 W. Alameda Ave. and threatened the 65-year-old clerk by claiming he had a knife. After the clerk filled the suspect’s bag with money, the suspect fled on foot in an unknown direction. The man wore gray slacks in that incident, police said.

A day before the first Chevron robbery, Burbank yogurt shop Froyo Bliss, located at 101 N. Victory Blvd., was robbed at gunpoint for the second time in two weeks.

Information about how much money was taken during the four robberies was not available. No injuries were reported. No customers were in the stores at the time of the robberies.

Anyone with information about who may have been in the areas during any of the robberies is urged to call Burbank police at (818) 238-3210.

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Follow Alene Tchekmedyian on Google+ and on Twitter: @atchek.

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