Pakistani forces have bombarded residential areas in eastern Afghanistan.
Aircraft of the Pakistan Air Force also homed in oon some police checkpoints across the border.
The bombing was authorised by the Pakistan government one day after Afghan and Pakistani troops exchanged fire across border.
One Pakistani soldier was killed and three others were left injured after the exchange.
Afghanistan officials said the Pakistani jets targeted areas in Gushte district in Nangarhar province, where residential areas and government buildings were hit.
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