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PHILADELPHIA (CBS) — Philadelphia police are searching for three suspects in a frightening home invasion. The homeowner was thrown to the ground, his head was covered and his hands and feet were tied.

Police say this brazen home invasion happened about a week ago, but they have since been able to recover surveillance footage of the suspects.

Now, they are releasing that video, hoping the public can help solve this crime.

The video shows three men walking into a newly opened luxury apartment building on 16th and Race Street in Center City.

“It’s pretty scary, I thought we had some security guards, actually, to keep us safe but I guess not,” Center City resident Tyler Tepe said.

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You can see the men go into the apartment building elevator, according to police.

They somehow gained access to an apartment on one of the higher floors in the building. From that apartment, they managed to steal more than $51,000 worth of jewelry and other items.

And they did so while the resident was home.

“He’s already home, he hears a noise,” Philadelphia police Captain Sekou Kinebrew said. “He goes out into the hallway to investigate the noise and that’s when he’s confronted by the three males.”

“They approached and attacked the resident, they tied him up with some sort of item in order to restrain him, put a bag over his head or some sort of towel over his head and they ransacked the apartment and they took a significant amount of jewelry.”

Police say they believe this was a random robbery, that the victim had no connection to the suspects.

But they are still unsure how the suspects got access to the building and the apartment.

“Thankfully, any injuries that the victim may have sustained weren’t serious in nature, but I can imagine he’s completely shook up,” Captain Kinebrew said. “You don’t want these things to happen you at all, but you certainly don’t anything like this to happen in your own house.”

Police are asking anyone with information or anyone who recognizes the suspects to contact authorities.