A rocket attack on the largest U.S. military hub in Afghanistan killed one person Monday, NATO said, while Afghan authorities in the country''s east prevented three would-be suicide bombers from attacking a security post.

The rocket attack targeted the sprawling Bagram Air Field, north of the capital, Kabul. A NATO spokesman would not say whether the victim was a service member or a civilian.

Abdullah Adil, the police chief in the Bagram district of Parwan province, said one rocket was fired onto the grounds of the base at about 4 a.m. A Taliban spokesman told The Associated Press that two rockets were fired on the base.

Bagram is home to some 24,000 military personnel and civilian contractors supporting the war against the Taliban insurgency. While well protected and located in a relatively quiet area, the more than 5,000-acre (2,000-hectare) base is still susceptible to rocket and mortar attacks. Last year, insurgents launched more than a dozen attacks on Bagram, killing at least four people.