KABUL, AFGHANISTAN - Two French humanitarian workers were kidnapped at gunpoint Friday in Afghanistan and spirited out of the house they were sleeping in, the aid group Action Against Hunger and the French Foreign Ministry said. The two are thought to be alive, the Paris-based group said in a statement.

Also Friday, explosions were reported in Helmand province and in Kabul.

A Friday morning blast in Helmand province's Nava district killed three guards and wounded four, said provincial police chief Mohammad Hussein Andiwal.

Later Friday, Mohammad Nasim, a police official in Kabul, reported that an explosion in the western part of the capital had damaged property, including a mosque, in a residential neighborhood. There were no reports of casualties. The blast occurred near an office of the Afghan Nation political party.

The bombings and kidnappings come amid concern that the Taliban-led insurgency is gaining momentum seven years after the hard-line Islamic regime was ousted by a U.S.-led invasion. Violence has been on the rise in the country, and just this week militants penetrated an American outpost in the east, killing nine U.S. soldiers.

In response to the increased bloodshed, Pentagon leaders have said they are looking for ways to send additional troops to Afghanistan this year.

The two French aid workers were abducted when kidnappers burst into their house in Nili, in the central Afghan province of Day Kundi, and bundled them into waiting vehicles, Action Against Hunger said. The kidnappers, who struck at about 1 a.m., had tied up guards posted outside the house.

Action Against Hunger said it was working to win the workers' release as soon as possible.

The aid group said it had suspended its activities in Afghanistan in response to the kidnapping. The group has worked in Afghanistan since 1979 and has 10 foreign staffers and about 150 locals working in the country, according to its Web site.

France's Foreign Ministry confirmed the kidnappings.

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