NORTH WAZIRISTAN/BAJAUR Four children were wounded when a mortar shell fired from Afghanistan struck a village in North Waziristan Agency while a Pakistani soldier was killed when Afghan militants attacked a checkpost in Bajaur on Monday. Four children sustained injuries when a mortar shell reportedly fired from Afghanistan fell on a house at Bangedar village in tehsil Ghulam Khan of North Waziristan Agency. The children were aged between eight to 14 years. One of the injured is stated in critical condition. The official sources said the shell came from an Afghan border post in Khost province. Meanwhile, hundreds of armed militants from Afghanistan attacked a security check post in Bajaur Agency and killed a personnel of security forces while four Afghan militants were killed after retaliation in the wee hours of Monday. Reportedly, the Afghan militants - stated to be in hundreds - crossed into the Pakistani territory from Kunar province of Afghanistan and attacked a security check post at Katkot Ghakhi pass, Tehsil Loy Mamond area, near Pak-Afghan boarder. The checkpost is at a distance of about 40 kilometres in north of Khar headquarters of Bajaur Agency. During the exchange of fire, which continued for over two hours, army personnel Naik Said Mohammad was killed and his colleague Badshah Rehman sustained severe injuries. However, the forces retaliated with full force and killed four Afghan militants and injured several others. The Afghan militants retreated into Afghanistan after the attack. The reports said the militants carried away with them all the bodies but sources said one of the Afghan militants body was in the custody of forces. Soon after the incident, fresh contingents of forces rushed to the area to stop the militants attacks inside the Pakistan territory. Villagers from Kitkot, where the attack took place, told Reuters that militants used rocket-propelled grenades, hand grenades and AK-47 assault rifles. Heavy firing was going on, and it lasted for several hours, tribal elder Juma Gul said. Maqbool Malik from Islamabad adds: Pakistan and Afghanistan Monday condemned loss of life and destruction of property by militants on both sides. A statement issued by Foreign Office said Foreign Secretary Salman Bashir and Ambassador of the Islamic Republic of Afghanistan Mohammad Umer Daudzai had a meeting on Monday in capital. They discussed in-depth the prevailing situation created by the militants in Dir, Bajaur, Mohmand and Kunar regions, which was a matter of deep concern to both the governments and people of Pakistan and Afghanistan. It said that Pakistan condemns the loss of lives and destruction of property on both sides by the militants. We consider Afghanistans loss as our own loss. It is, therefore, imperative that efforts be redoubled by both sides to attain the objectives of shared peace and security and to enhance cooperation for shared development and prosperity, it quoted Salman as telling to Afghan ambassador. The foreign secretary conveyed to Ambassador Daudzai the importance that Pakistan attaches to establishing peace and tranquillity in the border region and the importance of effectively curbing the activities of the miscreants. This matter has been the subject of contacts at the highest Pakistan-Afghan-ISAF military-to-military levels, with a view to devising appropriate strategy to curb the activities of the militants. Another meeting between the concerned military authorities will be held to enhance information sharing and coordination between Pakistan-Afghanistan and NATO/ISAF. As affirmed by President Asif Ali Zardari and Prime Minister Gilani, Pakistan desires closest relations with Afghanistan. We believe that both countries are faced with common challenges relating to militancy and terrorism, which require deep and close cooperation, he said. The foreign secretary and the Afghan Ambassador expressed satisfaction on the recent meetings in Kabul. The foreign secretary expressed gratitude to the Afghan Ministry of Foreign Affairs for the excellent arrangements made for the holding of constructive talks in Kabul. Agencies add: A statement issued from the Afghan Embassy said the two countries agreed to convene a meeting of their military authorities to boost efforts to counter the activities of militants operating along the frontier. The meeting was held at the request of Daudzai. Both sides agreed to take effective steps and frustrate these conspiracies and to remove misunderstandings, the statement added. Both sides agreed that military officials of Afghanistan, Pakistan and foreign forces would meet soon to resolve problems and suggest measures to avoid such incidents in future.