Two people were killed and five wounded in a Halloween attack in Quebec City by a sword-wielding suspect dressed in medieval clothing, Canadian police said early Sunday.

The attacks occurred in the Old Quebec neighbourhood of the city. The suspect, "a man in his mid-20s," was armed with a sword and dressed in "medieval clothing," a Quebec City police spokesman said during a press briefing.

The man was arrested shortly before 1:00 am. Police have not given a motive for the attacks. Police have asked city residents to stay inside with the doors locked while their investigation was underway. Police have formally identified the suspect but have yet to release his identity to the public.

The suspect was hospitalized after being taken into custody, police say. The arrest occurred about one mile from the parliament building where the attack occurred.

During the manhunt, police issued an urgent warning to those in the area, asking them to stay indoors. ‘Avoid the Parliament Hill area. The suspect is still not located. For citizens of the whole city: You are asked to stay inside,' police said in a tweet just before midnight. 

'According to our preliminary information, the suspect is dressed in medieval clothes,' cops said. 

After the arrest, police tweeted: 'We still ask the citizens of Quebec City to stay inside with the doors locked because an investigation is still underway.'