A Beacon Hill grandmother and her grandchild were terrorized during a home invasion robbery on Beacon Hill Tuesday morning.

UNCUT: Chopper Over Beacon Hill Robbery Scene

A knock at the front door turned out to be a ruse when gunmen forced their way into the home, in the 3900 block of South Graham Street, at about 10:30 a.m. The robbers held a pillow to a grandmother's face and ripped jewelry from her neck. The robbers took the jewelry and laptop computers.

The victim's grandchild, a 4-year-old girl, hid. When the robbers left, the family couldn't find the girl. Police found her in a closet.

Tan Truong, 19, rushed home from school when he learned armed robbers had broken into his family's home, he said.

"They attacked my mom, put a pillow over her and then like a gun on her neck and asked, 'Where's all the stuff?'" he said. "And my mom just pretended she fainted. My niece was there, too, but she hid in the closet the whole time. She was smart. The whole time she was like hiding in the closet by herself. She didn't talk to nobody so it's good... (I) think she's safe."

The grandmother said she may have seen the man who knocked at the door before, Truong said.

“She said she remembered seeing the same guy two months before, so they probably watched the house,” Truong said.

Seattle Robbery detectives spent several hours at the crime scene, dusting for fingerprints and packing up bags of evidence. They said there seemed to be no previous connection between the victims and the suspects.

No one was seriously hurt.

“My mom just got a red neck ‘cause (the robbers) pulled the necklace from her,” Truong said.

Students at Aki Kurose Middle School -- about a block away -- were kept inside classrooms until noon as a precaution, school officials said.