Lahore's air quality remains 'hazardous' with an air quality ranking of 447, according to the AQI list.
Nawaz should certainly go abroad for medical treatment if his health requires it, says PML-N leader outside court.
Former premier's mother and sister visit him at Services Hospital in Lahore.
The flight has been rescheduled for 12pm, a spokesperson says.
The decision was taken during a meeting of the aviation division, in which Prime Minister Imran approved the purchases.
Total number of cases have come up to 58 this year; campaigns to be held in Lahore, KP and Balochistan.
Punjab Chief Minister Usman Buzdar has summoned an emergency meeting to discuss the flood alert for River Sutlej.
Following repair work, the runway has since opened.
Protest in Sahiwal against killing of family members ends after FIR registered.