This is the bizarre moment when a cannabis gang’s guard dog gives itself up to police during a drugs bust.

Narcotics cops arrested the three men on a ranch in Hortolandia, Sao Paulo state, Brazil, on Thursday, 28th July.

The officers seized 1,176 bricks containing 1.1 tonnes of marijuana from the property.

A police video of the raid shows the three suspects lying face-down on the floor with their hands cuffed behind their backs.

But the gang’s massive Rottweiler decided to surrender too and flopped down beside the three suspects.

According to Narcotics Police, the drugs had been shipped to the house in Hortolandia from Campo Grande, Mato Grosso do Sul state.

But police had been monitoring the property and swept in when the delivery arrived.

Cops believe the drugs were destined to be sold in and around Campinas, Sao Paulo state.

The men – one of whom owns the house – were taken to the Narcotics Police headquarters in nearby Americana.

The dog remained in the property with the female owner of the land around the house, who police say is not involved in drug trafficking.

Cops will return to the ranch today (Friday, 29th July) to check on the Rottweiler and two other dogs to see if the the animal protection services need to be called.