Police in Spain are in the midst of a police operation that is "under control" about 90 minutes south of Barcelona in the town of Cambrils, following a "possible terrorist attack," local officials said early Friday morning.

Five "terrorists" were killed in the operation, police said. Initially officials said four people were injured and one person was wounded and detained.

On Twitter, police said that they "have killed the alleged perpetrators." Catalan police told ABC News that they believe the incident in Cambrils to be related to a separate attack in Barcelona earlier today.

Authorities are working to determine whether the alleged terrorists carried explosive belts.

"We work on the hypothesis that the terrorists killed in Cambrils would be related to the events in Barcelona and Alcanar," police said. Alcanar is the location of the earlier deadly house explosion that police said was believed to be connected to the Barcelona plot.

Also, Catalunya’s Emergency Services confirmed that in addition to the terrorists, six people were injured, two of them seriously. One police officer was also injured.

At least 13 people died and more than 100 were injured after a van slammed into pedestrians in a busy tourist section of Barcelona's Las Ramblas district.

PHOTO: Policemen stand next to vehicles in a cordoned off area after a van ploughed into the crowd, injuring several persons on the Rambla in Barcelona, Aug. 17, 2017.Josep Lago/AFP/Getty Images
Policemen stand next to vehicles in a cordoned off area after a van ploughed into the crowd, injuring several persons on the Rambla in Barcelona, Aug. 17, 2017.

Two individuals have been detained, police said. One person is a Spanish national from Melilla and the other is from Morocco.

Neither of those detained was the driver of the van, police said.

ISIS has claimed responsibility for the Las Ramblas attack via its Amaq agency, according to the SITE Intelligence Group.

Catalonia's emergency services advised the community to "stay home" and "avoid going out."

PHOTO: Spanish authorities confirm people are injured after a truck reportedly hit people on a busy Barcelona street, Aug. 17. 2017.Vil_Music/Twitter
Spanish authorities confirm people are injured after a truck reportedly hit people on a busy Barcelona street, Aug. 17. 2017.

Police have connected the incident to a house explosion in Alcanar, Spain, Wednesday night. The explosion, which caused part of the building to collapse, killed one person and injured others, police said.

The two people who were arrested were detained in the same town as the house explosion, authorities said.

Police described a separate incident in which a car trying to get past a Barcelona checkpoint hit an officer and another person, police said. The incident killed one person and broke the officer's leg, police said.

A man inside the car was shot by police, authorities said, but they did not confirm whether the incident was connected to the attack in Las Ramblas.

A spokesperson for the Guardia Civil, Spain’s national police force, told ABC News the man who rented the van has been identified as Driss Oukabir. Police confirmed that Oukabir is one of the detained individuals.

PHOTO: Police officers cordon off a street in Barcelona, Aug. 17, 2017. Manu Fernandez/AP
Police officers cordon off a street in Barcelona, Aug. 17, 2017.

An eyewitness told a Spanish television station that the driver of the van ran people over for nearly 1,000 feet before fleeing into a nearby Turkish restaurant.

The witness said the suspect had something in his hand but he could not tell what it was.

Police said there is no proof that the man who left the car was armed but described the incident as a terror attack that attempted to kill as many people as possible.

PHOTO: Spanish authorities confirm people are injured after a truck reportedly hit people on a busy Barcelona street, Aug. 17. 2017.carlos_tg_32/Instagram
Spanish authorities confirm people are injured after a truck reportedly hit people on a busy Barcelona street, Aug. 17. 2017.

Some of the injured went to the hospital on their own, said Catalonia's interior minister, Joaquim Forn, said in a press conference Thursday night. The number of dead and injured victims could go up, Forn said.

Authorities are in the process of identifying the deceased, he said.

PHOTO: Armed policemen stand in a cordoned off area after a van ploughed into a crowd, injuring several people on the Rambla in Barcelona, Aug. 17, 2017.Josep Lago/AFP/Getty Images
Armed policemen stand in a cordoned off area after a van ploughed into a crowd, injuring several people on the Rambla in Barcelona, Aug. 17, 2017.

Spanish Prime Minister Mariano Rajoy expressed solidarity with the victims and their families, describing the attack as "jihadist terrorism."

Those responsible for the attack will be brought to justice, Rajoy said, stressing that the response to the terrorism needs to be global.

Barcelona residents are suffering "the same pain and the same uncertainty" as their neighbors in Madrid, Paris, Nice, Brussels and London, Rajoy said.

Forn declared three days of mourning, and a moment of silence will be held on Friday at noon local time at the Plaza de Catalunya, Forn said. The king of Spain, Felipe VI, will be present for the moment of silence, the palace's official Twitter account announced.

El Rey estará hoy en la plaza de Cataluña de Barcelona para unirse al minuto de silencio en solidaridad con las víctimas del atentado.

— Casa de S.M. el Rey (@CasaReal) August 17, 2017

Las Ramblas is a popular tourist area in Spain's second-largest city and was filled people at the time of the attack, police said. Catalan police ordered an evacuation of the area.

SLIDESHOW: Barcelona terror attack in pictures

Emergency services for the Catalonia region, of which Barcelona is the capital, posted tweets in multiple languages advising individuals to use social media to inform relatives of their whereabouts.

#Barcelona #Rambles If you are ok, please Inform your family using social networks to avoid the collapse of phone lines

— 112 (@112) August 17, 2017

Source : http://abcnews.go.com/International/truck-hits-pedestrians-busy-barcelona-street/story?id=49272618

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