EMERYVILLE — A woman pushing her 8-month-old baby in a stroller foiled an attempted robbery by three boys when she kicked one of them in the groin and began screaming, causing them to run off, police said Thursday.

The suspects later snatched a cellphone from the hand of another woman and ran off laughing, police said.

Two of the suspects, one 14 and the other 15, were arrested following the Tuesday night robberies but the third is being sought. Police did not say where the boys lived.

The attempted robbery happened about 5:30 p.m. Tuesday in the area of 66th and Vallejo streets.

Police said the Oakland woman was pushing her baby in a stroller when the three suspects surrounded her and demanded her phone.

They fled after the woman kicked one of them in the groin and began screaming, police said. The woman later told police she responded the way she did because she was scared for both her and her baby’s safety.

About 7 p.m. Tuesday the same suspects robbed a woman of her cellphone as she was talking on it, and ran off laughing, despite her crying and pleading to return the phone, police said.

A short time later an officer spotted the three suspects at the north end of the Bay Street mall. They ran off in different directions but two were captured.

Police said one of those arrested was the teen that was kicked in the groin but did not say which one.

Both suspects were identified by the victims and the stolen cellphone was found in a backpack of one of the suspects, police said. The phone’s Sim card had been removed, police said.

They were arrested on suspicion of robbery and conspiracy to commit a crime and were taken to Juvenile Hall.

Anyone knowing the identity of the third suspect is asked to call police at 510-596-3700.

Staff writer Katrina Cameron contributed to this report.