A drone carrying more than six pounds (2.7kg) of methamphetamine has crashed near Mexico's border with the US.
Mexican police in Tijuana say they were alerted to an unidentified object in a car park of a shopping centre.
"The drone had packages taped to it and was covered with plastic bags containing the drug known as crystal", the local police chief said.
Authorities are investigating where the flight originated, who controlled it and where it was bound for.
Police say it is not the first time a drone has been used for smuggling drugs across the border.
In April, US authorities in South Carolina found a drone outside a prison fence which had been carrying mobile phones, marijuana and tobacco.
Other attempts to smuggle drugs have included catapults and ultralight aircraft.