A man who pretended to be a North Charleston police officer during a home invasion will now face additional charges in the incident, Charleston police said.

Rudolph Brown, 36 of Grech Street, was initially charged with first-degree burglary and two counts of kidnapping, police spokesman Charles Francis said. He now faces additional charges of armed robbery and possession of a firearm during the commission of a violent crime, Francis said.

Charleston police are still searching for two other suspects in the case.

Two Joshua Drive residents reported that three men kicked in their home’s back door shortly before 9 a.m. on May 10, Francis said.

The armed men entered a bedroom and yelled that they were North Charleston police officers, Francis said. The gunmen yelled for the residents not to move, and they demanded money, he said.

A resident told police that one of the men fired shots inside a bedroom at the home.

One resident escaped through a bathroom window, Francis said. Another was robbed of $300 before the gunmen drove away, he said.

A resident recognized one of the gunmen from an argument about money before the incident, Francis said.

The investigation is ongoing, he said. Anyone with information about the incident can call Charleston police at 577-7434 or Crime Stoppers at 554-1111.