Four armed men have poured petrol over a couple in their 60s and threatened to set them alight during an overnight home invasion and robbery in Brisbane.

A couple has been doused in petrol during a terrifying home invasion in Brisbane overnight.

Police say four men armed with a knife and a machete poured petrol over a 64-year-old woman and a 63-year-old man, and threatened to set them alight if they did not hand over money.

One assailant allegedly struck the woman in the face, leaving a cut under her eye.

The group fled the house in Bridge Street in Wooloowin in the city’s north with jewellery and a purse containing cash about 2.30am.

The men are believed to have left the scene in two vehicles, including a silver sport utility vehicle.

All four men wore balaclavas during the incident.