COSTELLO: Checking some top stories for you at 58 minutes past. Investigators now confirm an underwater signal detected by a French naval vessel is from Egypt Air flight 804. That plane vanished from radar over the Mediterranean earlier this month. 66 people on board that flight. Once the black boxes are retrieved, authorities say they'll be handed over to Egyptian officials. As U.S. trained forces make gains around Fallujah, this video shows troops celebrating after freeing a small town from ISIS. But the challenges inside Fallujah are enormous. Security forces now facing threats from ISIS like boobie traps, snipers, and IEDs. The U.N. says an estimated 50,000 people are trapped inside the city. Fallujah is the last ISIS stronghold West of Baghdad. U.S. backed coalition forces in Northern Syria are making strides against ISIS. The alliance trying to cut off ISIS's access to the key city of Raqqa. The progress comes as airstrikes nearby kill at least 58 people. As of last night more than 18 airstrikes hit the city of Idlib. One strike damaging a popular hospital, it forced the hospital to close. Thank you so much for joining me today. I'm Carol Costello. AT THIS HOUR with Berman and Bolduan starts now.
Egypt Air flight 804 black box signal detected underwater by French Navy; Air strikes gain ground in Syria.