Police were following extremist who stabbed 6

New Zealand authorities were so worried about an extremist inspired by the Islamic State group that they were following him around the clock and were able to shoot and kill him within 60 seconds of him unleashing a knife attack that wounded six people Friday at an Auckland supermarket.

Three of the shoppers were taken to Auckland hospitals in critical condition, police said. Another was in serious condition, while two more were in moderate condition.

Prime Minister Jacinda Ardern described the violence as a terror attack. She said the man was a Sri Lankan national who was inspired by the Islamic State group and was well known to the nation’s security agencies.

Ardern said she had been personally briefed on the man in the past but there had been no legal reason for him to be detained.