U.S. President Donald Trump said Friday white nationalism is not a rising threat after a racist gunman shot dead 49 victims at two mosques in New Zealand.

Axar.az reports citing American media.

"I think it’s a small group of people that have very, very serious problems, I guess," Trump told reporters at the White House. "If you look what happened in New Zealand, perhaps that’s the case. I don’t know enough about it yet. They're just learning about the person, and the people involved. But it’s certainly a terrible thing.”

The casualty toll for the attack includes 12 victims who were critically injured and officials are warning that figure could rise.

Forty-two people were injured in the coordinated attacks, Karalyn van Deursen, executive communications director at Christchurch Hospital, told Anadolu Agency.

The dead include a 5-year-old girl and her father, who were chased by a gunman and shot, local Radio New Zealand reported.

The gunman opened fire on worshippers during Friday prayers at the Al Noor and Linwood mosques in and around Christchurch, New Zealand’s third-largest city.

Four suspects -- three men and one woman -- were taken into custody in connection with the massacres. One has reportedly been released.

A 28-year-old prime suspect is scheduled to appear in court Saturday after having been charged with murder