HOUSTON -

A Harris County man has been accused of choking a boy and threatening a teenage girl with a knife.

Vonnen Lucious Robinson, 20, has been charged with injury to a child.

Harris County Precinct 4 deputy constable said Robinson put a 10-year-old boy in a head lock and choked him until the boy almost passed out. Investigators there were signs on the boy's neck that he had been choked.

Robinson was trying to get the boy to tell him an alarm code, officials said.

Robinson is also accused of threatening a 14-year old girl with a knife.

Both children are related to the suspect, investigators said.

Robinson tried to run, deputy constables said, but was caught and arrested.