SAN BRUNO -- Police are searching for two men who they believe are responsible for three armed robberies in two days in and around Commodore Park in which the robbers threatened victims with a kitchen knife and hammer.

The first robbery happened at 5:37 p.m. Monday, near Interstate 380 and the YouTube and Walmart corporate offices on Cherry Avenue. The victim was approached by a man wielding a kitchen knife and demanding his laptop computer. The robber took it and ran off toward a nearby apartment complex.

Around 9 p.m. that night, a man was in the restroom at the nearby park when he was robbed by two men, one of them brandishing a hammer.

A third similar crime happened in the same area at 10:24 a.m. Tuesday, when a pair of robbers walked up to a man and demanded his wallet and cellphone. One of the robbers had a large kitchen knife and after taking his belongings they ran off toward the same apartment complex as in the first crime.

"It's not a dangerous area," said San Bruno police Lt. Troy Fry. "San Bruno in general is not known for real high crime, and this is unusual for us to have robberies, much less three."

Each victim described one of the men as Hispanic, 25 to 30 years old, 5-foot-10 and skinny, wearing a black trench coat in the Monday robberies. The other is described as Hispanic and in his late 20s, 5-foot-8 and thin with a thick mustache. He wore a black wool cap and had a black backpack.

"The weapon in two of the robberies was a silver kitchen knife," Fry said. "The hammer is a little different but we believe all three are related."

Anyone with information about the robberies is asked to contact San Bruno police at 650-616-7100 or sbpdtipline@sanbruno.ca.gov.

Contact Eric Kurhi at 408-920-5852. Follow him at Twitter.com/erickurhi.