Pakistani police say they have arrested a U.S. citizen in the country's restive tribal area, along the Afghan border.
Police say the man was detained Monday at a police checkpoint, while trying to enter the Mohmand area of North Waziristan tribal region. Officials say he was carrying an American passport and a laptop.
Foreigners require special permission from the Pakistani government to enter the tribal area. Authorities say the man told police he was a college student from the southern U.S. state of Florida.
Police are questioning the man. A U.S. embassy spokesman said he had no information about the arrest.
Elsewhere in Pakistan's northwest today, Pakistani security officials said government troops killed more than 38 militants in the latest fighting in the tribal area.
At least 28 militants were killed in Bajaur region, and another 10 militants were killed in Pakistan's Swat Valley.
Elsewhere in the northwest, officials say four people, including a local politician, were wounded in a roadside bombing in Dir district.
The Pakistani military has been carrying out an offensive against Taliban and al-Qaida militants in the country's northwestern tribal regions.
The military says at least one thousand militants have been killed in Bajaur since security forces launched a campaign there in August.
The Pakistani government is under pressure from neighboring Afghanistan and the United States to take on Taliban and al-Qaida militants along the Afghan border. Authorities say the militants use Pakistan to attack soldiers in Afghanistan.
Some information for this report was provided by AP.