A small but deadly paradise tree snake was caught after it slithered into a resident's letter box in Singapore.

Footage shows a rescue worker from animal charity ACRES pulling out the bright green venomous reptile that was locked inside the tiny compartment on October 11.

He then placed the thin serpent inside an opaque container before it could slither away.

Homeowner Wai Yin, who lives in the Sungei area of Singapore near a wildlife reserve, said: 'My helper discovered it while I was out. I was afraid that if left alone, it would slither down and enter our premises and maybe bite my pets, so she used scotch tape to barricade it inside.'

Paradise tree snakes are found in Southeast Asia. They are mildly venomous, but their bite is powerful enough to immobilise small prey like lizards.

They move by flattening their bodies and 'gliding' from tree to tree.