Latest: Security at US mosques increases after deadly New Zealand attack

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(ABC NEWS) – Security at mosques all across the US is heightened today following a deadly terror attack in New Zealand.

At least 49 people were killed and 48 others were rushed to the hospital after police say a gunman attacked two mosques while hundreds of Muslims were praying.

Authorities say four people have been detained, but one of them has already been released.

Watch the video above for more information.