Six people were killed and four hospitalized in an office shooting at fiber optics manufacturer in southeast Albuquerque, city in U.S. state of New Mexico Monday, Xinhua reported.
Police chief Ray Schultz said a gunman opened fire at the factory, killing five people and wounding four others before killing himself.
Investigators say the incident occurred at around 9:30 a.m. local time in a conference room in the Emcore Fiber Optics building, adding that roads in the area have been closed down.
Authorities ask people near the scene to stay inside their home.
Police said primary suspect is a 37-year-old employee of Encore Fiber Optics. It is believed he killed his ex-wife and other five people.
"In a situation like this, there are other people in the building and they became, unfortunately, casualties as well," police chief Ray Schultz said at a press conference.
Schultz also said the gunman was a former employee of the Albuquerque-based company which has about 700 full-time employees. But he did not release the name of the shooter.
The cause of the shooting is not yet known and the police said investigations are still underway.
Schultz disclosed that the gunman had a history of domestic violence, saying there was at least one previous domestic violence call involving the gunman.