The air space over Benghazi airport has been closed for security reasons, according to airport manager Taba Mohammed. He would not elaborate on why the decision was made.
Benghazi air space has been closed since for routine security checks. It may be open in one hour.
President Obama vowed to do everything possible to protect Americans overseas as he honoured the four killed in the Libyan consulate attack.
Both Barack Obama and Mitt Romney know how they respond to the spread of violence across the Arab world could affect their election hopes.
Mitt Romney has attempted to score cheap, tawdry political points in the wake of the worst attack on the US diplomatic service in decades.