Two teenagers who allegedly bound and robbed a 68-year-old man in his Daly City home on Monday have been arrested, police said.

Just before noon, the suspects -- believed to be a 14-year-old boy and an 18-year-old man -- knocked on the door of a home in the first block of Poncetta Drive, Daly City police Sgt. Michael Barton said.

When the victim answered the door, the suspects knocked him down and bound him with duct tape, Barton said.

The two suspects then stole an ATM card and a laptop computer, and fled the scene in the victim's car.

The victim was not injured in the robbery, and was able to contact police after the suspects left, Barton said.

The stolen vehicle was spotted later that day by police in San Francisco. The two suspects, who were inside the car, were taken into custody.

They were questioned by Daly City police and arrested on suspicion of robbery, burglary, elder abuse and car theft.

The 18-year-old was identified as Jose Rodriguez, and was and booked into San Mateo County Jail. The 14-year-old, whose name has been withheld because of his age, was booked into the San Mateo County Youth Guidance Center.