A police officer in Mexico City and a municipal guard in São Paulo died this week after colleagues’ firearms discharged accidentally inside moving vehicles, while road accidents in Dhaka and Tehran claimed the lives of at least five motorcyclists, according to local authorities. The unrelated incidents have each triggered internal investigations and renewed scrutiny of safety procedures across three continents.

In Latin America, an officer from Mexico City’s Secretariat of Citizen Security was fatally shot in the Venustiano Carranza borough when a fellow officer’s weapon fired as he removed his jacket inside a patrol car. The wounded officer was rushed to hospital but declared dead on arrival. The officer who fired the shot was placed at the disposal of the public prosecutor, and the internal affairs directorate opened a parallel inquiry. In São Paulo, a guard with the Metropolitan Civil Guard was driving against traffic on Rua Augusta when the patrol car collided with a vehicle turning into a car park. The impact, combined with a sharp manoeuvre, caused a colleague’s pistol to discharge, striking the driver in the back. He died in hospital. The weapon was seized and both criminal and administrative investigations are under way.

In South Asia, a 23-year-old grocery shop worker died when the motorcycle he was riding was hit from behind by a truck or covered van on the Buriganga First Bridge in Dhaka early on Friday. He and friends had travelled to Mawa for a meal and were returning to the capital. The pillion passenger was injured and taken to Dhaka Medical College Hospital, where the driver was pronounced dead. Police have registered the case and are searching for the vehicle that fled the scene.

In the Middle East, Tehran’s traffic police chief reported five fatal accidents involving motorcyclists within a single week, resulting in six deaths. The victims, with an average age of 30, died in collisions on major highways including Imam Ali and Jalal Al Ahmad. Causes cited by police included failure to pay attention to the road ahead, speeding, and illegal left turns. In one incident, a motorcyclist and his passenger, aged 20 and 24, died after losing control and not wearing helmets. The police chief urged riders to wear helmets and observe speed limits, noting that many deadly crashes occur on empty roads due to momentary lapses.

All cases remain under active investigation. In Mexico and Brazil, internal affairs units are examining whether officers followed weapon-handling protocols during transport. In Bangladesh, authorities are seeking the driver who fled. In Iran, traffic police have reiterated public safety warnings. No final determinations of responsibility have been issued.