PIEDMONT — Police are searching for three men who carried out a home invasion Tuesday night on Estates Drive, where they held a family at gunpoint before stealing cash and jewelry.

The suspects entered the home in the 200 block of the street about 8 p.m., isolated the residents in one area, then ransacked the home as they searched for valuables, police said.

The men fled on foot and may have left the area in a vehicle, Piedmont police Capt. Jeremy Bowers said.

The victims, a couple and their two children who were described by police as toddlers, were not hurt.

There is no indication that the robbers specifically targeted the family, Bowers said. The men entered the home through the unlocked front door.

All three suspects were described as black males. Two are between 18 and 22 years old. One stands between 5 feet and 7 inches and 5 feet and 9 inches tall and has a thin build. The second stands between 5 feet 8 inches and 5 feet and 10 inches tall and has a medium build.

The third suspect is between 21 and 25 years old. Police described him as shorter than the other suspects.

A home invasion was also reported about 2:40 a.m. Tuesday in the 4600 block of Sequoyah Road in Oakland. Oakland police arrested two suspects about 90 minutes later at Mountain Boulevard and Sequoyah Road. They were detained in a vehicle that was reported in a carjacking Monday afternoon in Oakland, police said.

Fremont police are currently investigating two home invasions. One was reported Aug. 16 on Hunter Lane and the second on Aug. 28 on Pilgrim Loop, where no one was home but video surveillance shows five suspects armed with firearms entering the residence through a rear patio door.

Piedmont police are working with detectives from Oakland and Fremont, as well as other neighboring cities, as part of their investigation into possible links with other cases, Bowers said.

He also noted that three robberies of workers at construction sites in Piedmont have taken place over about the past month, and that the description of the suspects is similar to those involved in the home invasion on Estates Drive.

The home invasion in Piedmont Tuesday night took place on the same street and just a block away from another home invasion in January 2013. It was one of four home invasions in Piedmont that happened between December 2012 and January 2013, including one on Arroyo Avenue where a robber fired a gunshot into the house as he was fleeing. Police arrested three men in connection with those cases.

Anyone with information about Tuesday’s home invasion can call Piedmont police Detective Willie Wright at 510-420-3013.

Reach Peter Hegarty at 510-748-1654 or follow him at Twitter.com/Peter_Hegarty.