U.N. Secretary-General deeply concerned after meeting with eastern commander

U.N. Secretary-General Antonio Guterres said on Friday he was leaving Libya with a "heavy heart" and was deeply concerned after he held a meeting with eastern commander Khalifa Haftar who has ordered his troops to march on the capital Tripoli.

"I still hope it is possible to avoid a bloody confrontation in and around Tripoli," Guterres tweeted.