Jakarta, Jan. 24 -- Jakarta Governor Pramono Anung said the capital needs coordinated, phased measures to tackle flooding, combining short-, medium- and long-term solutions, warning the problem will recur without sustained cooperation between authorities and residents.

"Without collective action, flooding could return. The government and communities must work together to protect the environment," Pramono told reporters in Jakarta on Saturday.

He said river blockages from trash had fallen sharply and that the latest flooding was driven mainly by extreme rainfall averaging 200 millimetres a day, reaching as high as 260 millimetres in some areas.

Pramono said the Jakarta provincial government had mapped flood mitigation plans across short...