Astonishing moment heroic Oslo dog takes down man running through garden after teen is slashed with machete outside train station

A heroic dog took down a man who ran through the pet’s backyard while fleeing an alleged crime.

The man is believed to have been part of a group of four who got into an argument with a 17-year-old boy at Melton South train station in suburban Melbourne at 5pm.

A fight broke out and the teenager was allegedly stabbed with a machete before the group fled the scene in the northwestern suburb.

A 24-year-old Brookfield man attempted to escape through a nearby backyard, where the homeowner’s children and nephew were playing.

But Oslo, the Staffordshire, sensed something was wrong. His protective instincts kicked in, he chased the man and bit him.

After being bitten, the man climbed over a fence into an adjacent property, where he was cornered before being arrested.

“We knew he could have possibly been hiding in our backyard and the kids might have seen him, but since Oslo was chasing him, we were glad he kept them safe,” homeowner April 9News.

A police spokesperson told Daily Mail Australia: ‘It is believed the victim was approached by a group of four male offenders when a fight broke out at a Strachtton Street train station just after 5pm.

A man (pictured) running from an alleged crime scene chose the wrong backyard to go through on Tuesday when a heroic dog named Oslo bit him and prevented his escape

Oslo the Staffordshire Terrier sensed something was wrong and his protective instincts kicked in as he chased and bit the man

The man was believed to be part of a group of four involved in an altercation with a 17-year-old boy at Melton South train station (pictured) in suburban Melbourne around 5pm.

‘Detectives believe the victim, a 17-year-old boy from Cobblebank, armed himself with a machete but was subdued by the offenders and suffered a cut to his hand during the incident.’

The 24-year-old who was bitten by Oslo was arrested a short time later, but released pending further investigation.

“The victim was taken to hospital with non-life-threatening injuries,” the spokesperson said.

‘The precise circumstances surrounding the incident are being investigated.’

The rest of the group has not yet been found and no one has been charged yet.

Oslo was praised for being a good boy and received lots of hugs and a big bone.