Police were called to reports of six Pit bull type dogs out of control on Queens Park, Chorley New Road, Bolton.
A 60-year-old woman had suffered a bite to the hand and a man was bitten on the leg. A dog also suffered serious injuries.
Footage shows armed police arrive on the scene in large numbers before a series of gunshots can be heard.
One of the dogs is seen running towards police before it is shot dead. A number of people hiding inside a property can be heard gasping as police shoot the dogs.
One man can be seen being taken away by police during the incident and two dogs lie dead in the road.
Police say two dogs were humanely destroyed and two dogs were seized.
Officers are currently searching the area for another dog who is believed to be part of the group.
Marya Mahmood, who works at Room Four Dessert, on Deane Road saw a man crying as he was arrested.
She said: “We saw two dogs that were not on leads and about four or five dogs on a lead being held by a man.
“The ones off the leads were chasing the police officers and they had to shoot them otherwise they were going to attack them.
Superintendent Chris Allsop of Greater Manchester Police, said: “Highly trained officers responded quickly to the scene and took control to avoid the situation from escalating.
“The officers acted with our number one priority in mind; to protect people and prevent them from harm.
“I’d like to thank to the public for their patience and full cooperation as we remain at the scene and carry out our inquiries.
“I’d also like to remind them that their safety is a priority – if you see a dog, please do not approach it but alert a nearby officer or call 101 immediately.”
Anyone with information should contact police on 101 quoting reference number 869 of 02/04/17 or the independent charity Crimestoppers, anonymously, on 0800 555 111.
(Mirror UK - April 2, 2017)