Afghanistan summoned Pakistan's deputy ambassador to discuss the 'irresponsible' remarks by Khan, foreign affairs ministry spokesman Sibghatullah Ahmadi said in a series of tweets on Tuesday.
Two explosions went off at a public celebration in the southern Afghan city of Lashkar Gah on Saturday, killing two people and wounding the governor of Helmand province, security and hospital officials said.
The blasts came during a Farmers Day celebration in the southern city that was attended by nearly 1,000 people.
Two children and eight security forces were among the casualties, said Ataullah Khogyani, spokesman for the Nangarhar provincial government.
The Taliban ambushed a police convoy in western Afghanistan, killing seven security forces, an official said on Saturday.
The bloodshed comes as the US pushes for a peace settlement with the Taliban, and ahead of a new round of talks expected to take place in Qatar later this month.
Hundreds of Taliban fighters stormed a district in Afghanistan’s western Badghis province, with both Afghan government forces and the insurgent group suffering dozens of casualties, provincial officials said.
Afghanistan unveiled 43 tenders for natural resource projects on Monday in a drive to attract investment in a country ravaged by decades of war.
Torrential rainstorms have lashed drought-stricken Afghanistan in recent days, bringing widespread flooding that has killed at least five people and washed away homes including in the capital Kabul, officials said Tuesday.