Phnom Penh (FN), October 20 - Cambodian Mine Action Authority (CMAA) insisted in calling on US to cooperate on removing chemical bombs after several attempts.

"We have communicated by all means to the US Embassy to ask for cooperation on humanitarian principles. Unfortunately we did not receive any positive response from the US Embassy in Phnom Penh,” according to CMAA's press release on Thursday.

The US chemical bombs in Koki commune, Romeas Hek district, Svay Rieng province, had affected about 50 local and officials; 20 victims remain in the hospital.

“CMAA has known about the presence of such canister in Svay Rieng Province for many years, and received two rounds of detailed training in 2015 and 2016 from U.S. military experts on this specific topic,” according to the U.S. Embassy press release earlier on Thursday.

CMAA stated that the US Embassy statement confused the national and international public, as CMAA just received the news on chemical bombs reported by villagers in January, 2017.