Swiss couple kidnapped in Pakistan

NEW: Official: The couple had just arrived when they were kidnappedNEW: The couple registered at a police checkpoint, official saysThey were kidnapped in Loralai, the official saysNo group immediately claimed responsibility

(CNN) -- A Swiss couple has been kidnapped while traveling in Pakistan's volatile southwestern Balochistan province, an official said Saturday.

The couple was kidnapped Friday while traveling in the town of Loralai, said Sohail Rehman Baloch, a senior provincial administration official.

No group immediately claimed responsibility for the kidnapping, he said.

A search was under way, with four teams looking for the couple, Baloch said.

The couple entered the province from Dera Ghazi Khan in the Punjab District and registered themselves as husband and wife at a police checkpoint, Baloch said.

It was not immediately known what they were doing in the area.

Telephone calls by CNN to the Swiss General Consulate in Karachi, the Swiss Embassy in Islamabad and the Swiss Department of Foreign Affairs in Bern were not answered.

Journalist Syed Ali Shah contributed to this report.

CNN