IMPHAL: Two militants of the People Liberation Army (PLA) were arrested with arms and ammunition in Imphal West district of Manipur, official sources said on Sunday. A gun, two 9mm pistols, five bombs shells, a Chinese hand grenade along with detonator, an empty case of bomb shell and 290 ammunition were recovered from them. Meanwhile, Jiribam block Congress office was set on fire by some unidentified persons at around 7pm. Further details of the incident are awaited, police said. (PTI)