Dhaka: Nine people have died after a shootout between rival biker gangs at a Texas restaurant, police say.

Shots were fired after an argument escalated inside Twin Peaks restaurant shortly early on Sunday afternoon (local time).

Multiple weapons were involved in the brawl, NBC News-affiliate KCEN-TV reported, including guns, chains, knives and bats.

Waco Police Department said officers were at the scene when the shooting started but none had been injured.

However, it was not immediately clear whether any bystanders had been wounded or killed.

Residents were urged to steer clear of the area while the situation was still ‘dangerous’ and ‘active’.

Police said they were ‘continuing to arrest individuals coming to the scene with weapons’ after the shooting.

One eyewitness said the bikers ‘just opened fire’.

‘There were maybe 30 guns being fired in the parking lot, maybe 100 rounds,’ Michelle Logan, 37, told The Waco Tribune.

A statement from Waco Police Department said: ‘Multiple injuries to include multiple fatalities at Twin Peak Shooting.

Officers were on scene when shooting started.’

No officers have been injured.