Cambodian police say they have apprehended a Thai man suspected of gunning down a former opposition politician from Cambodia in a popular Bangkok tourist area.

Thai authorities should immediately and thoroughly investigate the killing of a former Cambodian opposition politician in Bangkok.

Lim Kimya, a French-Khmer citizen and former member of parliament for the outlawed Cambodian National Rescue Party (CNRP), was allegedly shot dead by a former Thai naval marine, named Ekkalak Pheanoi, 41, who was identified with CCTV footage.

A suspected hit man who shot dead a former Cambodian opposition lawmaker in a brazen attack in Thailand's capital Bangkok was arrested in Cambodia after a day-long manhunt, a senior Thai police official said on Wednesday.

Lim Kimya had arrived in Thai capital Bangkok along with his wife, uncle from Siem Reap, Cambodia's 2nd-largest city - Anadolu Ajansı

Responding to the fatal shooting of Cambodian-French former opposition MP Lim Kimya in Bangkok, Thailand, Amnesty International’s Interim Regional Deputy

Amnesty International denounced the killing of a former Cambodian-French opposition politician in Bangkok, Thailand on Wednesday. Lim Kimya, a former member of the Cambodia National Rescue Party

He had just arrived in Bangkok with his wife on a bus from Cambodia. A police officer attempted to resuscitate him, but he was pronounced dead at the scene. "He was courageous, with an independent mind,

Lim Kimya was shot dead on Tuesday by a gunman on a motorbike as he arrived in the Thai capital from the Cambodian city of Siem Reap by bus.