160-Foot Deep Sinkhole Dramatically Swallows 3 Vehicles After Suddenly Forming on Busy Bangkok Highway
A massive sinkhole opened up on Samsen Road in central Bangkok on Wednesday morning, Sept. 24, swallowing three vehicles, toppling electricity poles, and forcing the evacuation of a nearby hospital and residential homes.
According to the Royal Thai Police (RTP), the sinkhole which measured roughly 98 feet wide by 98 feet long and plunged about 160 feet deep collapsed without warning around 7:00 a.m. local time. The sudden road collapse occurred in front of a school, close to Vajira Hospital and the Samsen Metropolitan Police Station, sparking chaos on the busy thoroughfare.
“Vajira Hospital, Samsen Road, Dusit District, Bangkok, is a hole 30 x 30 meters wide [98 feet x 98 feet], 50 meters deep [160 feet], and has a tendency to collapse further,” the RTP confirmed in a press release.
At least three vehicles were pulled into the gaping hole, including a tow truck belonging to the nearby police station, while two large electricity poles also collapsed into the crater. Water pipes running beneath the road were severely damaged, disrupting supplies to parts of the Dusit District.
Local newspaper The Nation reported that the Samsen police station itself sustained structural damage from the collapse. Video footage shared online by witnesses and outlets such as BNO News Live captured the dramatic moment when the road buckled and vehicles scrambled to reverse before being swallowed.
Due to the scale of the collapse, Vajira Hospital ordered an immediate evacuation of patients and staff, while officials instructed nearby residents to temporarily vacate their homes as a precaution. Emergency teams were deployed to secure the area and monitor the ground for signs of further subsidence, especially as Bangkok continues to endure heavy monsoon-season rainfall.
Despite the scale of the disaster, authorities confirmed that no injuries or fatalities have been reported.
Bangkok Governor Chadchart Sittipunt said that initial investigations point to construction work on a subway station beneath the road as the likely cause of the collapse. Heavy rainfall may have accelerated the subsidence, worsening soil erosion beneath the asphalt and weakening surrounding infrastructure.
Officials warned that the hole could expand further if weather conditions remain unstable.
The National Police Commissioner has directed the Metropolitan Police Bureau to work with the Bangkok Metropolitan Administration and other agencies to stabilize the site and begin urgent repairs. Authorities are also reviewing nearby roads and construction zones for possible risks of similar incidents.
“The priority is to ensure public safety, stabilize the ground, and restore essential services like electricity and water,” the RTP said in its statement.
Photos released by police showed a vast crater exposing the city’s underground infrastructure, while emergency workers inspected the site amid fears of further collapse.

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