A father and son say they're grateful to be alive after being attacked and robbed at knifepoint Saturday night.

According to cops, Jose Vasquez was dropping off his father, Leonardo, on Walton Avenue when three men rushed into his van. The dad was able to escape, but the suspects allegedly duct taped and robbed his son.

The group fled the scene in another vehicle. Anyone with information is urged to call Crime Stoppers at 1-800-577-TIPS.