JAKARTA: Indonesia has closed Mount Bromo national park in East Java for all tourist ​activities, its operator said late on ‌Saturday (Aug 8) as a wildfire, burning since Monday, expanded in its caldera area. The closure took effect from Saturday ​evening, for an undetermined duration, the park ​operator said on its official Instagram page. The ⁠raging fire has burned an area of ​around 176ha at Mount Bromo, ​an active volcano that is a popular tourist destination known for its "sand sea" caldera. The wildfire has expanded from ​around 60ha on Thursday. "This closure is a ​crucial step to maintain safety of visitors, staff and people ‌in ⁠the surrounding areas," the operator said, adding that people who have bought entrance tickets will be able to reschedule visits or seek a ​refund.