An American teacher was shot dead in Benghazi on Thursday, 15 months after a deadly attack on the US consulate in Libya's second city, medical and security officials said.
The dead man worked at the city's international school, a Benghazi Medical Centre official said.
A security official confirmed the teacher had been shot dead while taking his morning jog in the central Al-Fwihet neighbourhood of the city.
Private television channel Al-Naba reported that a US citizen had been killed but gave no further details.
In other violence on Thursday in the increasingly lawless eastern city, two Libyan soldiers were shot dead in separate incidents, the latest of dozens of security personnel to be gunned down in recent weeks, security officials said.
The violence rocking the city, which was the cradle of the NATO-backed rebellion against veteran dictator Moamer Kadhafi, is largely blamed on jihadist groups that have mushroomed since he was toppled and killed in 2011.
Chief among these is Ansar al-Sharia, a jihadist group accused of the September 11, 2012 attack on the US consulate in Benghazi that killed ambassador Chris Stevens and three other Americans.
Libya's new authorities have tried in vain to integrate former rebels who helped topple Kadhafi into the regular armed forces, with many militias carving their own fiefdoms, each with its own ideology and regional allegiances.