A high-pressure sewer drain jetter machine, capable of up to 3,000 PSI, is being used to break rock debris found in the sinkhole in front of Wisma Yakin, Jalan Masjid India in Kuala Lumpur, as part of efforts to locate a woman from India who fell into it on Friday.

Dang Wangi district police chief Sulizmie Affendy Sulaiman said the use of cameras by the search and rescue (SAR) team had detected rock debris believed to be due to the sinkhole, positioned 4m from its edge.

“This debris needs to be removed so that...