A bomb has exploded on a tourist beach in the Spanish resort of Guadalmar in the south of the Costa del Sol.
An anonymous caller had warned fire services of the bomb before it exploded.
The caller, who said he spoke for the Basque separatist group ETA, warned fire services in nearby Benalmadena that three bombs would explode, according to the Interior Ministry.
Bombs were reportedly placed in Guadalmar, Benalmadena and on a highway linking Malaga to its international airport, a ministry spokeswoman said today.
It follows a series of bombs set by ETA in Spain's northern resorts of Laredo and Noja last month.
ETA has been fighting since 1968 for an independent Basque homeland in northern Spain and southern France.