Two US soldiers were kidnapped by Taliban militants in Afghanistan's southern Logar province, hours after five American troops were killed in bomb blasts in the southern part of the war-torn country.
The abducted soldiers left their compound on Friday "and did not return", a statement from NATO's International Security Assistance Force (ISAF) said, amid reports one of them may already be dead.
Earlier, five American soldiers were killed in the southern part of the country where fighting has been intensified.
Local radio stations were broadcasting a reward of USD 20,000 for any information on the missing soldiers. The broadcasts described the captured soldiers as having tattoos.
One is about six feet tall with blond hair and brown eyes. The other was described was bald with a thin moustache.
Samer Gul, district chief of Charkh district in Logar province, said that a guard tried to flag down the vehicle, carrying a driver and a passenger, but it kept going, media report.
"They stopped in the main bazaar of Charkh district. The Taliban saw them in the bazaar," Gul said.
"They didn't touch them in the bazaar, but notified other Taliban that a four-wheel vehicle was coming their way."
The second group of Taliban tried to stop the vehicle, but when it didn't, insurgents opened fire and the two occupants in the vehicle shot back, according to Gul, who added that the soldiers may have lost their way and come into an insecure area.
Bowe Bergdahl is the only US soldier known to be in captivity of the Taliban. He disappeared in June 2009 in Paktika province of eastern Afghanistan.