Pakistani police say gunmen have kidnapped the son of a slain governor who was killed by his bodyguard for opposing blasphemy laws.

Police say four men overpowered Shahbaz Taseer's car Friday in Lahore's upmarket Gulberg area.

No one has claimed responsibility for the kidnapping.

The kidnapped man is the son of Salman Taseer who was killed earlier this year by his bodyguard after publicly supporting a woman accused of committing blasphemy. The woman had been sentenced to death.

Officials say the Taseer family has been repeatedly threatened.

Taseer's abduction is the second high-profile kidnapping in Lahore this month.

Police are still searching for American aid expert Warren Weinstein who was kidnapped two weeks ago.

The 70-year old American was snatched from his home on August 13 after eight gunmen overpowered his security guards.

Police have arrested three people suspected of belonging to the gang that kidnapped Weinstein. Authorities have also released a sketch of a suspect in the case.

So far, the kidnappers have not contacted authorities or made any ransom requests.