The second suspect in the series of stabbing attacks in Canada, which left a dozen dead, died after his arrest on Wednesday, Canadian media reported, two days after his brother and also a suspect in the attack was found dead.

Public broadcaster CBC and Global News, citing unidentified police sources, said Myles Sanderson died of self-inflicted injuries. The police organized a press conference.

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Hours earlier, Saskatchewan Provincial Police reported his arrest in a social media post.

Myles Sanderson and his brother Damien are believed to be responsible for the carnage that has spread across the vast prairie region of Canada.

On Monday, the body of Damien, 31, was found in a field in the Cree community.

Authorities said he was likely killed by his brother Myles, 32, who remained at large until his arrest near the Saskatchewan town of Rosthern.

Myles Sanderson was also wanted for violating probation in May after serving part of a sentence for assault and robbery.

Stabbing attacks in the James Smith Cree Nation Indigenous community and in the town of Weldon in the province of Saskatchewan on Sunday left 10 people dead and 18 injured.

So far, authorities do not know the motivation for the attacks as they have found no evidence that could give them any reason why the suspects carried out the massacre.

Relatives of the victims have spoken of their “nightmare” and demanded answers from the authorities.

Authorities believe some of the victims were targeted by suspects and others were targeted randomly.

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Ten people remained hospitalized after the tragedy, including three in critical condition, according to Saskatchewan health officials. Seven other victims were discharged from hospital.