Libyan gunmen launched an attack on a supermarket in Benghazi while two Egyptian citizens were unloading goods.During the attack an Egyptian citizen called Gad Abdel Masieh Abdel Malak was shot dead, according to spokesman of the Foreign Ministry.The Egyptian Embassy in Tripoli is following up closely the latest developments in the accident and contacted the concerned Libyan authorities to track down the perpetrators and bring them to justice, the spokesman underlined.