A group organized by Squirrel Hill Stands Against Gun Violence marches in Squirrel Hill, Sunday, April 28, 2019. It was six months yesterday that a gunman shot and killed 11 people while they worshipped at the Tree of Life Synagogue on Oct. 27, 2018

PITTSBURGH — The Pittsburgh synagogue that six months ago was the site of the deadliest U.S. attack on Jews is offering its sympathy to the Chabad of Poway synagogue near San Diego.

The Tree of Life synagogue released a statement Saturday that says “we are heartbroken — and appalled and outraged — by the news of the attack. ... This must stop.”

The statement says “We know first-hand the fear, anguish and healing process such an atrocity causes, and our hearts are with the afflicted San Diego families and their congregation.”

Authorities say a young man armed with a rifle opened fire inside a synagogue near San Diego on Saturday, the last day of Passover. A woman was killed and three other people were wounded.

Eleven people were killed by a gunman at the Tree of Life in October.