Police investigators are conducting a scene reconstruction at a private residence in the Grand Polonia housing complex, Medan, following a fatal explosion that occurred on Monday, July 20, 2026. Authorities discovered multiple safes inside the home, identified as unit 3B, as they processed the debris for evidence related to the blast that resulted in three deaths and four injuries.
Evidence Collection and Forensic Analysis
According to Kapolrestabes Medan Kombes Jean Calvijn Simanjuntak, police are currently inventorying the contents of the house to determine which items are relevant to the ongoing investigation and which are personal property belonging to the victims.
The forensic team focused its primary evidence gathering on the property’s atmosphere. AKBP Roy Tenno Siburian, Kasubbid Fiskom of the North Sumatra Police Labfor, confirmed that personnel collected air samples from the interior of the home. Laboratory testing using Gas Chromatography-Mass Spectrometry (GC-MS) technology identified the presence of methane gas, or CH4, within the structure.
Did You Know? The forensic investigation concluded that the explosion was caused by the detonation of methane gas, a substance described by investigators as gas used by PGN.
Casualties and Investigation Status
The incident occurred on July 20 at approximately 15:30 WIB. The explosion resulted in seven total casualties. Three individuals were found deceased under the wreckage, while four others survived the event.
Frequently Asked Questions
What was the cause of the explosion at Grand Polonia?
Forensic investigators confirmed that the explosion was triggered by the detonation of methane gas (CH4), which is the type of gas utilized by PGN.
How many people were affected by the incident?
There were seven victims in total. Four individuals survived the explosion, while three others were found dead under the rubble.
What did the police find during the crime scene investigation?
Police discovered multiple safes inside the house at unit 3B and collected air samples for laboratory analysis to determine the cause of the blast.
How will the discovery of the safes impact the ongoing police investigation into the victims’ property?
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