If you’re been thinking of smuggling to another country, it might not be the best idea. An Aeromexico passenger died onboard one of their flights headed from Mexico City to Tokyo after swallowing 246 packets of cocaine.

The passenger boarded the plane, however once inflight, flight attendants reported that he had died and requested an emergency landing in Hermosillo. Paramedics boarded and an autopsy was completed which showed he died from a cerebral edema caused by an overdose.

Per CNN,

A Japanese man died on board a flight from Mexico City to Tokyo with 246 packets of cocaine in his stomach.

Identified only as Udo N., the 42-year-old passenger flew from Bogota, Colombia, to the Mexican capital, where he transferred to a flight to Narita airport, Tokyo, according to a statement from the prosecutor’s office for the Mexican state of Sonora.

“Crew noticed a person suffering convulsions and requested to make an emergency landing in Hermosillo, Sonora,” reads the statement.

An autopsy revealed that Udo N. died from a cerebral edema caused by an overdose, according to the statement.

After the diversion, the flight continued onto Tokyo with the 198 remaining passengers onboard.