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Several people have been shot to death in the Houston suburb of Spring, Texas, the Harris County Sheriff's Office says - local media are reporting six people killed.
The Houston Chronicle, citing law enforcement officials, reported seven people were shot, including four children and two adults who were fatally wounded, in the incident in a residential area in Spring, about 40km north of Houston.
Police appear to have cornered the suspected gunman a few kilometres from where the shootings took place, reports said.
Streaming video from the scene from broadcaster KTRK showed a small car sandwiched between two trucks on a cul-de-sac with about a dozen police vehicles nearby.
The Harris County Sheriff's Office said it would provide further details at a briefing later today.