A giant crack has appeared in the ground in a rural part of Mexico, sparking concerns of seismic activity in the area.
Footage of the mile-long crack was captured by drones from the Hermosillo Sonora Mexico Emergency Management.
It is over a mile long, three metres deep and five metres wide in some places. Locals from a rural area of Sonora, northern Mexico, discovered the crack running through a rural road connecting the area to a highway.
Rafael Pacheco Rodríguez, from the University of Sonora, said the crack could be the result of seismic activity or underground streams, but added geologists will have to investigate to determine the cause.
Martin Moreno Valencia, from the Institute of Geology at the National Autonomous University of Mexico, told Mexican news website Excelsior that there is no cause for alarm.
He said initial indications suggest the trench was caused by ditch flows from rainwater that had infiltrated the ground.