Wiltshire Police are appealing for witnesses after a taxi driver was assaulted in Swindon.
The incident took place on the morning of 15 June, on Dawlish Road in the town.
A taxi driver had picked up two men and a woman from the Suji nightclub in Old Town shortly before 5.30am and was directed to take them to the Park North area.
As the vehicle drove along Dawlish Road, the three suspects became abusive to the driver and he ended the fare.
Following an argument, one of the men stabbed the driver before all three ran off in the direction of Radstock Avenue.
The taxi driver was taken to Southmead Hospital in Bristol but was released the same day. He suffered minor slash wound injuries.
DS Adrian Bray said: "This was an unprovoked attack on someone who was simply doing his job. Luckily, the injuries he sustained were not serious - it could have been very different due to the violent nature of the attack.
"I would like to reassure our communities that we believe we know who the offenders are and our enquiries to locate them are continuing.
"I would appeal for anyone who was in the Dawlish Road area of Swindon yesterday morning who may have seen this incident or anyone who might have any further information, to contact us immediately."
Anyone with information is asked to call 101 now and quote crime reference number 54190057409.
Image: Source; Wiltshire Police