A firefighter extinguishes a fire after a gas tanker exploded...

A firefighter extinguishes a fire after a gas tanker exploded under a highway overpass in Mexico City, Wednesday, Sept. 10, 2025. Credit: AP/Tristan Velazquez

MEXICO CITY — The death toll from the explosion of a tanker truck carrying propane on a major highway in Mexico City last week has risen to 15, authorities said Monday.

Mexico City health officials announced on X that a 40-year-old man had died from his injuries and then hours later said in a statement that a 15th person had died who had not been identified. Thirty-nine people remained hospitalized.

Investigators determined that the tank of the overturned trailer ruptured after colliding with something. They continue investigating whether the truck was speeding and whether the driver had sufficient training.

The resulting fire last Wednesday engulfed more than two dozen vehicles and left dozens of badly burned victims.

Suffolk County Sheriff Errol Toulon Jr. spoke with NewsdayTV's Ken Buffa about what life is like for the Gilgo Beach serial killer Rex Heuermann in jail. Credit: Anthony Florio; File Footage; Photo Credit: Newsday / James Carbone, John Paraskevas; AP / David Bookstaver, Clark County Sheriff's Office, Richard Drew, Mitchell Tapper, Don Ryan; Peconic River Sportsman’s Club / Kerry Goldberg

'He will be ... coming out of prison in a body bag' Suffolk County Sheriff Errol Toulon Jr. spoke with NewsdayTV's Ken Buffa about what life is like for the Gilgo Beach serial killer Rex Heuermann in jail.

Suffolk County Sheriff Errol Toulon Jr. spoke with NewsdayTV's Ken Buffa about what life is like for the Gilgo Beach serial killer Rex Heuermann in jail. Credit: Anthony Florio; File Footage; Photo Credit: Newsday / James Carbone, John Paraskevas; AP / David Bookstaver, Clark County Sheriff's Office, Richard Drew, Mitchell Tapper, Don Ryan; Peconic River Sportsman’s Club / Kerry Goldberg

'He will be ... coming out of prison in a body bag' Suffolk County Sheriff Errol Toulon Jr. spoke with NewsdayTV's Ken Buffa about what life is like for the Gilgo Beach serial killer Rex Heuermann in jail.

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