Afghanistan on Tuesday accused Pakistan of carrying out an airstrike on a Kabul hospital treating drug addicts and said more than 400 people were killed in the attack.Pakistan denied the accusation, saying its strikes – also carried out in eastern Afghanistan – targeted only military and “terrorist” sites.Health Ministry spokesman Sharafat Zaman gave the death toll during a television interview with local media, the AP reported. He said all parts of the drug treatment hospital were destroyed. However, deputy government spokesman Hamdullah Fitrat said the death toll had risen to 400, while 250 were injured. Powerful explosions rocked the Afghan capital at around 9:00 pm local time, and plumes of smoke were visible from the Shahr-e-Nawa and Wazir Akbar Khan areas. Local television footage showed firefighters struggling to put out the blaze amid the ruins of the building.Taliban government spokesman Zabihullah Mujahid wrote on Twitter that Pakistani forces had “once again violated Afghan territory,” calling the attacks a “crime” and “inhumane act.” He said most of those killed and injured were drug addicts and were undergoing treatment in hospital.Pakistan’s Information Ministry said the strikes “precisely targeted military installations and terrorist support infrastructure, including technical equipment storage and ammunition storage of the Afghan Taliban” and targeted Afghanistan-based Pakistani militants in Kabul and Nangarhar. It added that the locations were “being used against innocent Pakistani civilians.”The ministry said Pakistan’s targeting was “precise and careful to ensure no collateral damage.” It described Mujahid’s claim as “false and misleading” and intended to inflame sentiments and cover up “illegitimate support for cross-border terrorism”.Pakistan’s military has launched several attacks on Kabul in recent weeks as tensions have risen over allegations that Afghanistan’s Taliban government has harbored militants carrying out attacks inside Pakistan.The latest development came as deadly clashes continued along the countries’ shared border.Pakistan has repeatedly said that its army only targets Afghan posts and terrorist hideouts. Officials in Islamabad have described the situation as an “open war”, with clashes including multiple Pakistani airstrikes on Kabul, after President Asif Ali Zardari said Afghanistan’s Taliban administration had crossed a “red line” by deploying drones that left several civilians injured in Pakistan last week.In response, Pakistan’s air force attacked equipment storage sites and “technical support infrastructure” in Afghanistan’s Kandahar province over the weekend, saying the sites were being used for attacks inside Pakistan. Kabul said Pakistan attacked two locations, including an empty security site and a drug rehabilitation centre, causing minor damage.In Kabul, Afghanistan’s administrative deputy prime minister, Abdul Salam Hanafi, said it was the duty of all citizens to protect sovereignty. Speaking during a meeting with political analysts and media personalities, Hanafi expressed regret over the civilian casualties in recent Pakistani attacks and said the war was imposed on Afghanistan.