Police are looking for four armed men who robbed a group of people during a home invasion Saturday morning in Pearl City.

Three men and a woman were playing video games in an apartment on Ualo Street when the unknown men walked in with shirts covering their faces about 1:40 a.m., police said.

The assailants struck the woman, 30, in the face and head with the gun and also pistol whipped a 25-year-old man in the back of the head, police said.

The robbers took cash, a laptop, an iPhone, a video game station and video games, then fled on foot down Moanalua Road.

Police said the iPhone was tracked to Wahiawa before its GPS was disabled.