An Army officer was killed and a militant arrested in Baramulla district since Sunday evening, a defence spokesman said on Monday. Acting on specific information, troops of 57 Rashtriya Rifles assisted by local police launched an operation at Chak Rishipura, 55 kms from Srinagar on Sunday, the spokesman said. The troops noticed the movement of militants and challenged them following which the ultras opened fire and the troops retaliated, he said. During a search of the area after the firing stopped an injured militant, identified as Ilyas of Lashkar-e-Taiba was found and taken to Srinagar under police custody, he said adding six UBGL grenades, three hand grenades and a mobile phone was recovered from him. He said as the troops received information that associates of Ilyas had taken shelter in nearby Ayatpora the troops cordoned the area. While the cordon was being laid, firing from a house injured the captain. Because of late hours and pouring rain the injured captain could not be evacuated and succumbed to his injuries, the spokesman said.