What caused the second land subsidence near Jalan Masjid India?

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Investigation Underway for Second Land Subsidence Near Jalan Masjid India

A second land subsidence has been detected near the original sinkhole on Jalan Masjid India, prompting immediate closure of the road to vehicles and a comprehensive inspection of the sewage system. While the exact cause is still under investigation, authorities are examining potential links to underground infrastructure and obstructions within the sewage system.
Sewage System Inspection Underway

Following the detection of the new subsidence, located approximately 50 metres from the initial sinkhole and near a police post, Kuala Lumpur City Hall (DBKL) and Indah Water Konsortium (IWK) have been instructed to conduct thorough inspections of the sewage pipes at the site. These inspections are part of the broader effort to understand the subterranean conditions contributing to the ground instability in the area.
Obstruction Detected in Sewage Chamber

The Fire and Rescue Department (JBPM) has identified an obstruction within the sewage system, located between the original sinkhole and a second sewage chamber approximately 80 metres away. This obstruction was detected through the deployment of K9 unit dogs, Denti and Frankie, and subsequent camera surveillance. The nature and size of this lodged object are now a key focus of the ongoing investigation.
Diving Operation Planned to Clear Obstruction

To address the detected obstruction, a diving operation is scheduled to commence. This operation will involve eight divers, supported by a team of 75 personnel managing machinery and logistics. The divers will navigate from the original sinkhole to the second sewage chamber. The operation's timing is strategic, aiming for a period when the sewage water level is expected to be lower, thereby reducing risks associated with the current strong water flow. Sewage water is currently being pumped out to facilitate this operation.
Integrity Audit of Utility System Planned

Beyond the immediate incident, the government has announced plans for a comprehensive integrity audit of the entire utility system along Jalan Masjid India. This audit is slated to occur once the current search and rescue (SAR) operations are concluded. The objective of this extensive review is to ensure public safety and to gain a clearer understanding of the underlying causes of land subsidence in the vicinity.

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What caused the second land subsidence near Jalan Masjid India?

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