Bangkok governor Chadchart Sittipunt says an underground oil pipeline (about 14 inches, around 30 years old) may be leaking near Chuea Phloeng Road under the Rama III overpass in Klong Toey. About 1,000 square metres are affected, and about 4,000 litres of oil were recovered from roughly 20,000 litres of contaminated drain water. Drains are blocked, pipeline pressure has been lowered, and residents are told not to smoke or light fires. Expect traffic disruption while crews dig. If your business operates near Rama III or Klong Toey, plan delivery routes around the works and follow official safety advice.