Photo taken on July 24, 2014 shows smoke rising from a residential area in Tripoli, Libya. Deadly clashes erupted between Islamist fighters and pro-secular militias since July 13 with the death toll reaching 47. (Xinhua/Hamza Turkia)

 Photo taken on July 24, 2014 shows smoke rising from a residential area in Tripoli, Libya. Deadly clashes erupted between Islamist fighters and pro-secular militias since July 13 with the death toll reaching 47. (Xinhua/Hamza Turkia)

A local citizen watches the smoke rising from a residential area in Tripoli, Libya, on July 24, 2014. Deadly clashes erupted between Islamist fighters and pro-secular militias since July 13 with the death toll reaching 47. (Xinhua/Hamza Turkia)

Photo taken on July 24, 2014 shows smoke rising from a residential area in Tripoli, Libya. Deadly clashes erupted between Islamist fighters and pro-secular militias since July 13 with the death toll reaching 47. (Xinhua/Hamza Turkia)

Photo taken on July 24, 2014 shows smoke rising from a residential area in Tripoli, Libya. Deadly clashes erupted between Islamist fighters and pro-secular militias since July 13 with the death toll reaching 47. (Xinhua/Hamza Turkia)