Two Afghan national army soldiers were killed in a roadside bomb blast in southern Afghanistan, while elsewhere coalition forces arrested three men suspected of facilitating roadside attacks near the Pakistan border, DPA quoted officials as saying Saturday. Another two soldiers were wounded when an army vehicle was stuck by a roadside bomb explosion in the Sangin district of southern Helmand province on Friday, the defence ministry said in a statement. The wounded soldiers were evacuated to a nearby hospital, where they were reported to be in stable condition, the statement said.