UPDATE (2:24 p.m.): The Islamic State has taken credit for the attack.
#BREAKING IS claim responsibility for a Manila casino attack: SITE— AFP news agency (@AFP) June 1, 2017
UPDATE (2:58 p.m.): Terminal 3 of the Manila Ninoy Aquino International Airport is on lockdown. The terminals of Manila's airport effectively function as independent airports.
UPDATE (3:04 p.m.): The Resorts World Manila Facebook page has posted that the resort is under lockdown due to gunfire, and asked for prayers.
UPDATE (6:04 p.m.): Now there are reports that the situation was actually a robbery, not terrorism. Additionally, nobody was shot. There are further reports that it was a "lone wolf" ISIS supporter, if it was even ISIS.
#BREAKING Nobody shot in Philippine casino gunfire incident: police chief— AFP news agency (@AFP) June 1, 2017
There are reports of gunfire and explosions outside of Resorts World hotel complex in Manila, Philippines with SWAT teams moving in. CNN described a "shooting scene" and said that firefighters were also present.
Online, rumors swirled that ISIS is behind the attack, but this is unconfirmed. (see update)
The following video from the scene may be upsetting:
This story will be updated as information becomes available.