"1,000 dead, 1,500 injured, and this number might go up, many families have been lost. Injured people have been taken to Kabul and Gardez," Mohammad Amin Hozaifa, information and culture director of Paktika told Reuters.

Officially, disaster management officials still put the number of injured at 600.

(Reporting by Kabul newsroom; Editing by Andrew Heavens)