LOWELL (CBS) – Police are searching for two masked men who broke into a home and assaulted the two elderly residents who were sleeping inside.

The suspects broke into the Fifth Ave. home around 3:40 a.m. on Friday. The victims said they were awoken by the men demanding money.

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Both victims, an elderly brother and sister, suffered minor injuries. They were taken to an area hospital for treatment and are listed in fair condition.

Police investigate a home invasion on Fifth Ave. in Lowell. (WBZ-TV)

Lowell Police said the men were dressed in black and wearing masks. They ran out the front door without taking any money, but detectives discovered the resident’s car was stolen.

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The 2007 Infinity was later recovered. It is being processed for evidence.

Investigators believe the suspects broke through a front porch screen window and entered the home through the inner door. The residents had left the door open for fresh air.

A neighbor’s surveillance camera captured three men walking in the area just before the incident.

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“This is a village. We have to take care of each other. I’m pretty upset that I wasn’t there for them,” said Reid Homer, who lives across the street.