Five of the other provincial capitals to have fallen since Friday are in the country's north with the insurgents setting their sights on Mazar-i-Sharif
Fighting in Afghanistan's long-running conflict began to intensify in May, when US and other foreign forces began the withdrawal due to be completed later this month
Spokesperson Zahid Hafeez Chaudhri says all energies should be focused on finding an inclusive, broad-based and comprehensive political settlement to the conflict in Afghanistan