Apple CEO Tim Cook has tweeted his condolences after a horrific attack happen at the Chabad of Poway synagogue in California today.

We are devastated by another act of violence targeting people in their place of worship on this last day of Passover. We stand with the Chabad of Poway synagogue and denounce hatred in all its forms, today and always. — Tim Cook (@tim_cook) April 27, 2019

The people in the synagogue were worshipping, as today is the last day of Passover.

At this moment, there has been one death and three others have been injured from the attack. The suspect of the attack has been taken into custody, according to the New York Times.