More gunfire has rung out, some from police, amid a manhunt for a suspect who shot dead four people in two attacks in upstate New York.
Police say Kurt Meyers, 64, opened fire at a car wash and then a barber shop in neighbouring villages, killing two at each location and wounding two others.
Guns and ammunition were found inside Mr Meyers' home, officials said.
Schools were on lockdown as police searched for the suspect on foot and in a helicopter.
The villages of Mohawk and Herkimer are described as twin communities on either side of the Mohawk River, about 65 miles (105km) east of the city of Syracuse.
The weapons were found in Mr Meyers' apartment after emergency crews were sent to a fire there on Wednesday morning. The shootings began shortly afterwards.
Gunfire was heard at about 13:30 EST (17:40 GMT) as police surrounded a street of businesses in Herkimer.
New York state police said two people had been fatally shot in Herkimer at a car wash and two others had been shot dead at a barber shop in Mohawk on Wednesday morning.
Two others were wounded at the barber shop.
According to the Utica Observer-Dispatch newspaper, the suspect was seen carrying a long gun.
Nearby schools and Herkimer County Community College have been placed on lockdown, the regional TV station WKTV reports.
"Everybody's on lockdown - all the schools, the college, the village. It's very, very scary," Amanda Viscomi, a Herkimer village official, told AP news agency.
Mohawk Mayor James Baron said he did not know Mr Meyers, but knew several of the people who were shot, including "at least" two of the barber shop victims.
The 29-year-old mayor described his village as close-knit and friendly, "the kind of place where you'd say, 'oh, it would never happen here.'"