Saying that it wasn't confirmed if one of the snakes has already been captured, Wichien urged people who saw the long yellowish green snakes not to try to capture or kill the snakes themselves because the serum for their venom weren't available in Thailand.
He urged the people to call the hotline 1131 or 1363 for officials to dispatch well-equipped experts to capture them.
Earlier in the day, a widely-circulated tweet said a green mamba was found on Soi Kosumruamjai.
The Nation