Locals collect sand affected by oil spill at a shoreline in Karawang, West Java province, Indonesia, July 24, 2019. Indonesia's state energy firm Pertamina said on Thursday it will take weeks to plug an oil spill at its Offshore North West Java (ONWJ) facility, which has reached the northern coast of Java island. Antara Foto/M Ibnu Chazar

Locals collect sand affected by oil spill at a shoreline in Karawang, West Java province, Indonesia, July 22, 2019. The incident started on July 12, when natural gas was released during drilling at one of its wells in the ONWJ platform on the Java sea, Pertamina's upstream director Dharmawan Samsu told a news conference. ANTARA FOTO/M Ibnu Chazar

Locals collect sand affected by oil spill at a shoreline in Karawang, West Java province, Indonesia, July 22, 2019. Three days later the company declared an emergency and on July 16, a layer of oil began to rise to the surface of the sea in addition to the gas bubbles, he said. ANTARA FOTO/M Ibnu Chazar

Locals brought sacks of sand contaminated by oil spill at a shoreline in Karawang, West Java province, Indonesia, July 24, 2019. The sack containing sand contaminated with crude oil is collected and will be moved to the storage location of B3 waste (Hazardous and Toxic Materials) to be destroyed. ANTARA FOTO/M Ibnu Chazar

Locals collect sand affected by oil spill at a shoreline in Karawang, West Java province, Indonesia, July 24, 2019. The oil spill has reached villages on the coast of the Karawang area, West Java, 2 kilometres (1.2 miles) away from the facility, he said. It will take an estimated 10 weeks from the declaration of emergency to stop the oil and gas leakage, or another 8 weeks from Thursday, he said. Antara Foto/M Ibnu Chazar

Children play at a shoreline in Karawang, West Java province, Indonesia, July 25, 2019. Twenty-nine ships have been deployed to patrol the area, which are also on standby for firefighting, he said, adding that the firm has put up a 3.5-km containment boom at sea and another 3-km boom and 700 metres of fish nets along the shoreline. ANTARA FOTO/M Ibnu Chazar