The fifth car bomb in two days has exploded in the northern Spanish city of Santander, Spanish media said.

The device was in a Renault Clio and went off at 2.45pm local time, the newspaper El Pais reported.

Terrorists had earlier issued a telephone warning but said the bomb would go off at 2.50pm.

A building was damaged in the blast and windows blown out, the paper said. Security services had cordoned off the scene and there were no reports of injuries.

Santander is a first port of call for many British tourists travelling to Spain and the south of France.

Brittany Ferries runs a regular service between the town and Plymouth.

No injuries were reported in either of the two explosions, which were timed with the end of the European Union summit in Seville.

The news follows a explosion in the Costa del Sol earlier today.

A package bomb exploded on the Costa del Sol, just over 24 hours after a British man was seriously injured by a car bomb.

The device, which Spanish media reported was found in a fuse box in a hotel car park, went off in the town of Mijas, north of Fuengirola, at about 1.05pm local time (12.05am British time).

A British Embassy official said early indications were that no-one was injured in the blast, but two cars were damaged.

Reports in Spain said that two hotels in the area were evacuated after police were called with a warning that a bomb would explode in 30 minutes.

In a separate incident, El Corte Ingles, a department store in Cordoba, was also evacuated after a telephone warning about a device, the British Embassy official said.

The package bomb comes after a 33-year-old British man was seriously injured by shrapnel from one of three terrorist car bomb attacks on the Costa del Sol.

Marbella, Fuengirola and Zaragoza, in north-east Spain, were targeted by the Basque separatist group Eta.

The explosions were timed to coincide with a summit of European Union leaders in Seville this weekend.

The British holidaymaker, who has not been named but comes from London, was one of six casualties of the first blast on Friday morning, outside the Hotel Las Piramides, in Fuengirola.

He has had surgery to stop bleeding from his chest after the bomb left shrapnel splinters in his lungs, diaphragm and spleen.

Two other Britons, both children, suffered minor injuries in the attack and were treated for cuts and bruises.

A Moroccan child and a Spanish couple also suffered minor injuries in the first attack, when a grey Peugeot 205 exploded shortly after 7am (6am BST), while many in the resort were asleep in their hotels.

Others were already gathering in bars to watch England play Brazil in the World Cup.

A second blast went off in Marbella at 1.05pm local time, but there were no reports of injuries.

A third explosion last night rocked the north-eastern city of Zaragoza. Police said a policeman, a security guard and a passing French national sustained minor injuries in the explosion in the car park of the Corte Ingles department store.

The Foreign Office is warning tourists travelling to Spain to be alert to "continuing terrorist activity".

Tourist chiefs expressed anger at the blasts and said that UK holiday companies were on a state of alert.

The Association of British Travel Agents said British tourists in the area appeared happy to stay on despite the attacks.

Spain is still the leading foreign destination for UK tourists, who have come to expect both warnings and action from Eta.

Marbella and Fuengirola are part of a dense Costa del Sol group of seaside resorts.

The attacks came only a week after the authorities found 288lbs of dynamite and other explosives, along with detonators, in woods near Valencia.

The blast followed a telephone warning in the name of Eta to the emergency services in the northern Basque city of San Sebastian.

Eta, whose name is a Basque-language acronym that stands for Basque Homeland and Freedom, has been fighting since the late 1960s to carve an independent state out of lands between northern Spain and south-west France.

Eta's violent campaign has killed more than 800 people and the terrorists have targeted Spain's tourist resorts several times in the past.