A forensic examiner and a detective were wounded when an explosive device went off while they were examining a crime scene in northern Mexico, authorities say.
The device appears to have been a booby trap, though police in the state of Guanajuato have not confirmed that.
The state prosecutors’ office said last week that both of the wounded agents were in stable condition. Police in the violence-plagued Guanajuato city of Irapuato said plastic bags covered in blood had been found inside a house earlier.
Local media reported a severed head had also been found in the house.
A local website, TVConsequencias, was filming the crime scene when the explosion occurred. The video shows agents walking in front of a house roped off with police tape, when a powerful blast erupts inside the structure.
Guanajuato-based security analyst David Saucedo said the blast was caused by “a booby-trapped grenade connected to a door. It went off when it was opened.”
Guanajuato has been in the throes of a bloody drug cartel turf battle between the local Santa Rosa de Lima gang and the Jalisco cartel for years.
While drug cartels in the neighboring state of Michoacan have begun using improvised explosive devices on roads to disable army vehicles, booby traps are relatively infrequent in Mexico.
In 2010, a car bomb aimed at federal police officers exploded in the northern border city of Ciudad Juarez, killing three people and wounding nine. A drug cartel suspect used a cell phone to set off the explosives-laden car, which killed a federal police officer and two civilians, and wounded nine people.