By Megan Barnes

megan.barnes@langnews.com @meg_barnes on Twitter

Police are investigating a home invasion robbery in which four intruders tied up a Palos Verdes Estates couple and ransacked their home in the 1700 block of Lower Paseo la Cresta.

The robbers, described only as black men wearing masks and gloves and armed with handguns, tied the couple’s hands and feet after gaining entry to the home by unknown means about 7:30 p.m. Saturday, police said.

They spent 30 minutes ransacking the home before fleeing, after which the victims were able to free themselves and call 9-1-1. Police said one of the victims was slightly injured and it is not known if the couple was targeted or chosen at random.

Cpl. Greg Robinson of the Palos Verdes Estates Police Department said he did not know what was stolen, or whether or not the home had a surveillance video system. Thus far, he said, no witnesses have come forward. Detectives were on scene investigating Sunday morning.

Anyone with information is urged to call the Palos Verdes Estates Police Department detective bureau at 310-378-4211.