The circumstances of the abduction reported by the state-run news agency LANA were murky but one of the victims was described as the Egyptian cultural attache.
Libya has been on wobbly footing since Moammar Gadhafi was overthrown in 2011. Security has been a concern and kidnappings are on the rise.
CNN said a South Korean trade official was taken from his car in the capital last weekend, but was rescued and his alleged kidnappers arrested.
Notable deaths of 2014 [PHOTOS]