A Pakistani parliamentarian and three members of his family were injured in a parcel bomb blast at his residence in Karachi on Friday, police said.
Police said Yakub Bizenjo, his mother, brother and daughter were injured and had been admitted to hospital.
The parcel had been despatched from Bizenjo's Turbat constituency in Balochistan and was delivered to his Defence Phase-6 neighbourhood here by a transport company. It exploded while it was being opened, police said, advising people to be extremely careful while opening such packages.
Bizenjo is the lone representative of the Baluchistan National Party (BNP) in the 340-member National Assembly, the lower house of parliament.
Sindh Chief Minister Syed Qaim Ali Shah has ordered an inquiry into the incident.
President Asif Ali Zardari on Friday strongly condemned the blast, even as he asked after the welfare of the injured.
He also directed that a report be submitted to him at the earliest and those responsible be arrested.