JERUSALEM (AP) — Revelers dancing and singing through the streets of Jerusalem during the city's annual gay pride parade were left shrieking in pain and panic Thursday after an anti-gay extremist stabbed and wounded six people.

The attacker was identified by police as Yishai Schlissel, an ultra-Orthodox Jew who had recently been released from prison after serving a term for stabbing several people at a gay pride parade in 2005.

An Associated Press photographer saw the attacker enter the throng with his hand in his coat, pull out a knife and start stabbing people in the back. Police grabbed the man within seconds and arrested him.

In the chaotic aftermath, a man with blood seeping down his back staggered around before collapsing on the street, as medics rushed to help him and other wounded people.

Shocked revelers, some in tears, gathered along the sidewalk, embracing and comforting each other as ambulances and horse-mounted police arrived.

The parade continued after the wounded were taken for treatment, but with a more somber tone.

Most of Jerusalem's residents are either observant Jews or Muslim or Christian Palestinians, conservative communities in which many frown on homosexuality. Previous parades in the holy city have drawn opposition, but Thursday's attack was widely condemned across the Israeli political spectrum, including by ultra-Orthodox leaders.

The following are a series of images taken by Associated Press photographer Sebastian Scheiner of the grisly attack and its aftermath.

Follow AP photographers and photo editors on Twitter: http://apne.ws/15Oo6jo