The civil aviation revenue has increased by an average of $100,000 per day, officials said.
Khost governor spokesman says the incident will be investigated by the NDS office in the province.
Dozens of Iraqi protesters were wounded in Baghdad and other cities on Monday in clashes with security forces.
Maryam Baryalay writes that a US-Taliban deal seems ever more improbable in the light shifting regional dynamics.
"Nations which fight corruption and improve their rule of law can increase their national income by 400%."
Pakistan must adapt its strategy toward Afghanistan or it will impede Afghan-US peacemaking efforts.
