Explosion kills 22 in central Pakistan

A car bombing outside a politician's home in central Pakistan has killed 22 people and wounded 70 others.

Tuesday's attack in Dera Ghazi Khan town in Punjab province is the latest in a series to hit Pakistan in recent months.

Islamist militants are blamed in the attacks.

Rescue official Natiq Hayat says the explosion left a large crater outside the house of Zulfikhar Khosa, the senior adviser to the chief minister of Punjab province.

No one in the house is believed to have been killed.