DERA ISMAIL KHAN: Intelligence officials say a bomb hidden inside a radio exploded on a military base in northwest Pakistan, killing a paramilitary soldier and his 10-year-old son.

The officials say the soldier and his son were listening to the Asia Cup cricket final between Pakistan and Bangladesh on Thursday night when the bomb went off. Three other children were wounded.

Authorities are investigating how the bomb was planted in the radio. The attack occurred at a base in Wana, the main town in the South Waziristan tribal area, a key Pakistani Taliban stronghold.

The officials spoke on condition of anonymity Friday because they were not authorized to talk to reporters.