A machete attack at two churches in Spain on Sunday has left one dead and four wounded, according to authorities.

The attack occurred in the city of Palma de Mallorca, located in the Balearic Islands, and is being investigated as a possible terror attack.

The Associated Press reported that a 56-year-old man was killed in the attack and four others were wounded. The man killed was a Spanish national, while the four wounded were all foreigners.

The Guardian reported that the attacker was wielding a machete and was eventually subdued by police.

CBS Evening News reported that the attacker was shouting religious slogans during the attack.

Fox News reported that police are investigating the attack and that the motive is still unclear.

FRANCE 24 English reported that the police have detained the suspect and are looking into any possible links to terrorism.

The attack has prompted a heightened security presence at churches in the area. Spanish Prime Minister Pedro Sanchez has condemned the attack and expressed his condolences to the victims.

The investigation is ongoing.