Footage shows Thai police this afternoon as they launched a murder probe following the shooting of a British pensioner.

Retired engineer Neil Roger, 70, had been drinking with friends before travelling home on his moped along a dark road when he was blasted four times in the back in Pattaya on Thursday evening.

Locals heard the gunshots and found Neil, from Doncaster, in a pool of blood shortly before 10:30 pm. Four bullet shells were found on the road nearby.

Neil's younger partner Thitipan Kamlas, 38, arrived at the scene where she collapsed in tears next to her lover's dead body. Police and paramedics performed CPR but Neil was pronounced dead on the road after suffering severe blood loss.

Officers have now seized Thitipan's phone and are interviewing her, with one theory being that Neil was involved in a love triangle in the notorious holiday destination, known for its crime and adult nightlife.

Police Commander Itthipol Itthisaronchai said today that officers were looking at Neil's 'financial transactions and who would benefit' from his death.

He said: 'Immigration and tourist police officials have been summoned to assist with the investigation. They will look at his visa extensions and various financial transactions to find out who would get the benefits from the deceased.

'The deceased lived in Thailand for about 20 years and was going in and out of the country. He had a Thai family.

'We are ready to solve the case. The meeting this afternoon was production and CCTV along the routes around the incident are being monitored.'

Police did not reveal what Neil's girlfriend told them in interviews. She has not been arrested.