Major Amrit Ghale, Warrant Officer Bishnu Bhandari, Lance Corporal duo Pandav Rai and Raju KC were injured in an explosion that took place at the barrack of the NA peacekeepers deployed in UN Peace Mission in South Sudan on December 24.

Critically injured Ale is undergoing treatment at UN Hospital based in Kampala, Uganda, while three others are undergoing treatment in Juwa, Sudan.

NA spokesperson Jagadish Chandra Pokhrel said, "The health condition of all the injured NA personnel has improved. They are expected to return to their duty soon."

Some vehicles, water refining machines, and some physical infrastructures were damaged in the explosion, said Pokhrel.

As many as 850 NA peacekeepers have been deployed in South Sudan for the last two years under the command of a Colonel.