Sonny Bill Williams posts emotional video message after deadly gun attack in Christchurch

All Blacks centre Sonny Bill Williams has led tributes to the victims of the horrific gun attacks on two mosques in Christchurch.

Police now say 49 people have been killed and at least 20 seriously wounded in the attack which happened on Friday afternoon New Zealand-time.

Williams, who was the first Muslim to play for the All Blacks, posted an emotional video message on Twitter to the victims and their loved one's.

"Just heard the news and I couldn't put it into words how I'm feeling right now" he said.

"Just sending my duas [prayers] to the families, apparently there's close to 30 people dead.

"Just sending out my duas to everyone that's been killed today in Christchurch... you guys are all in paradise.

"I'm just deeply, deeply saddened that this would happen in New Zealand."

A man in his late 20's has been charged with murder, while three more people including an Australian national are in custody over the attack.

With the city in lockdown in the aftermath of the attack, All Blacks captain Kieran Read, who plays for the Christchurch-based Canterbury Crusaders, posted a picture on Instagram of an empty school hall, with the 33-year-old revealing he was waiting for his children.

"Sending my thoughts to all victims today," the Instagram story said. "Locked in the school hall waiting for the girls."

The Crusaders meanwhile tweeted "our thoughts are with the families and friends, and also the strong and resilient people of Christchurch and Canterbury. #love"

The All Blacks also posted their support for the those affected "Christchurch, we stand with you during this time. Our thoughts and sympathies are with everyone affected by today's tragedy. Stay strong. Kia Kaha. ?"

World Rugby also reacted to the horrific news, tweeting "Our thoughts go out to everyone in New Zealand following the attacks in Christchurch."

Sir Bill Beaumont also added "Deeply saddened to hear of the tragic events in Christchurch. Our thoughts are with everyone in the city & NZ rugby community at this very difficult time."

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