Palmerston North police are urging residents to stay inside after a firearms incident.
Police were called to Clyde Cres, in the suburb of Roslyn, about 4.40pm today.
Armed Offenders Squad members are at the scene.
Clyde Cres has been closed to through traffic and residents in the area have been advised to stay indoors.
The Herald understands a man with a gun has made threats.
One resident currently still on lockdown said police were using a loudspeaker to call on a man to surrender.
Another resident said he'd earlier seen armed police officers on the street, before police phoned his house and told him there was an incident taking place in the street and to lock his doors.
"They told us to stay inside and said it is not too far from where I live, on the other side of the road," he said.
"They haven't got the flashing lights on but there is a car directly outside my office window and there is one just the other side of my driveway."
The resident, who is a security guard and has lived in Clyde Cres for 35 years, said there had been firearms incidents in the street before.
He recalled armed police being called once when an air pistol was fired in a rental property and on another occasion when gunshots were heard in the area.
"That was a bit frightening when police were walking down the street in the dark all armed," he said.
He said today's incident was also frightening coming after the Christchurch terror attacks.
He also had his daughter and grandson and visitors in the house, all of whom have been told by police they cannot leave.
"You don't get too upset now when you are told you are in lockdown and you do what you are told," he said.
"You don't just take it lightly and think it is a bit of a joke."
"If someone in the street has got a weapon - well, we've got my grandson here and I don't want them leaving our property until we're told it is safe."
Another longtime Clyde Cres resident, living further down the street, said they could also see police cars and were in lockdown. Their son had earlier left the property and was now not being let back into the street.
The resident said the incident didn't seem close to her house and she was "calmly" waiting it out.