BELMONT -- Police believe three home burglaries in about eight hours Friday were tied to a string of recent home break-ins in neighboring cities.

The Friday burglaries occurred between 8 a.m. and 4 p.m. at homes that are within blocks of each other, Belmont police Capt. Tony Psaila said. Police didn't say what was taken from the homes, which were in the 1600 block of Manzanita, 1700 block of Valley View, and the 2000 block of Mezes avenues.

Psaila said investigators believe the burglaries are connected to similar crimes in San Mateo and Hillsborough, but he didn't elaborate. The crimes come as other San Mateo County cities have seen a rash of burglaries.

While investigating the Friday crimes, police talked to a neighbor who said a man came to the door asking to buy his car, which was not for sale.

Police say burglars will frequently knock on the door of a house, in order to see if anyone is home, before breaking in. If someone answers the door, the suspects will, for example, ask for someone who doesn't live there or offer to sell something.

The man who appeared at the neighbor's door was black, in his mid 20s and had a stocky build, Psaila said. He wore a red hat, a red sweatshirt or jacket, and had gold teeth.

Anyone with information about the crimes can call Belmont 650-595-7400.

Contact Joshua Melvin at 650-348-4335. Follow him at Twitter.com/melvinreport.