NBC News chief foreign correspondent Richard Engel, one of the most prominent and accomplished international correspondents in the world, is reportedly missing in Syria.

Turkish newspaper Hurriyet reports that Engel, together with Turkish journalist Aziz Akyavaş, were last known to be in Syria and haven't been in contact with NBC News since Thursday morning.

While the Turkish media have been circulating the report for several days, American outlets had been operating under a news blackout requested by NBC until today.