PITTSBURGH — City leaders in Pittsburgh are offering their condolences to the people of Christchurch, New Zealand, where 50 people were killed at two different mosques on Friday.

Pittsburgh said Friday it has an “all-too-intimate understanding” of what they are going through. A gunman expressing hatred of Jews is charged with killing 11 worshippers at a synagogue in October.

Patrols at Pittsburgh-area mosques have been increased and public safety officials are in contact with local Islamic leaders.

Pittsburgh Mayor William Peduto said the city stands with the people of New Zealand and will “continue to stand united against all forms of hate.”

The suspect in the shootings, 28-year-old white supremacist Brenton Harrison Tarrant, appeared in court Saturday. He showed no emotion when the judge read one murder charge and said more would likely follow.

Tarrant had posted a jumbled 74-page anti-immigrant manifesto online before the attacks and apparently used a helmet-mounted camera to broadcast live video of the slaughter.