Two masked men barged into a Missouri City home Friday morning while two boys were home alone, police said.

The 13- and 11-year-old boys were at the home on South Fifth Street while their parents were at work, according to Missouri City police.

The boys' mother, Elsa Garcia, told Local 2 that her sons said someone they thought they recognized -- a family friend -- knocked on the door and asked who was home.

"They closed the door," Garcia said. "Forty-five minutes later, my door gets kicked in in the back."

She said her kids said both men were dressed in black. One covered his face with a clown mask and the other, a mask with pointed teeth.

Garcia said her boys pleaded with the men not kill them.

"They grabbed one of my sons and threw him on the floor and told him, 'Don't look at me,'" Garcia said.

While the 11-year-old was on the floor covered in a blanket, police said, the 13-year-old was forced into a closet for nearly an hour.

After the intruders left, police said, the 11-year-old ran out into the street. He flagged down a passing car to call police.

Investigators said the only thing missing from the house was a cellphone.

"The only thing that they took was my kids' life, because they're traumatized," Garcia said. "My baby is 11 and he does not want to use the restroom by himself. He doesn't even wanna come home because he's so scared."

Garcia said police were able to lift some fingerprints from the home. Missouri City police are investigating.