Update: Casualties reported after gunshots and explosions at Philippines hotel and casino

Latest: Witnesses have reported gunshots and explosions at a hotel and casino complex in the Philippines capital, Manila.

Update 9.53pm: Gunshots and explosions rang out in the early hours of Friday at a shopping centre, hotel and casino complex near Manila's international airport in the Philippines capital, sparking a security alert amid an ongoing Muslim militant siege in the country's south.

Police rushed to the Resorts World Manila complex after gunshots were heard at the complex, where smoke began billowing from an upper floor of the mall.