The Pakistan International Airlines (PIA) suspended flights to Kabul on Thursday after what it called heavy-handed interference by Taliban authorities. The suspension took place as the Taliban government ordered the airline, the only international carrier operating regularly out of the Afghan capital, to cut ticket prices to the levels of before the fall of the Western-backed Afghan government in August. “We are suspending our flight operations to Kabul because of the heavy-handedness of the authorities,” a PIA spokesman said. Earlier, the Taliban warned PIA and Afghan carrier Kam Air that their Afghan operations risked being blocked unless they agree to cut prices that have spiralled out of the reach of most Afghans. With most airlines no longer flying to Afghanistan, tickets for flights to Islamabad have been selling for as much as $2,500 on PIA, according to travel agents in Kabul, compared with $120-$150 before. The Afghan transport ministry said in a statement prices on the route should “be adjusted to correspond with the conditions of a ticket before the victory of the Islamic Emirate” or the flights would be stopped. It urged passengers and others to report any violations. Flights between Afghanistan and Pakistan have been severely limited since Kabul airport was reopened last month. PIA, which runs chartered flights to Kabul rather than regular commercial services, said it had maintained the flights on humanitarian grounds and faced insurance premiums of as much as $400,000 as Kabul was treated as a war zone by insurers.