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, 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.

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

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.