A shooting at a synagogue outside San Diego where worshippers were celebrating the last day of Passover sent four people to the hospital Saturday, but the extent of their injuries was not clear, officials said.

There was no known threat after a man was detained in the shooting at the Chabad of Poway, but authorities boosted patrols at places of worship as a precaution, San Diego Police Chief David Nisleit said.

The shooting came exactly six months since a shooting at a Pittsburgh synagogue killed 11 people in the deadliest attack on Jews in U.S. history.

Synagogue members stand outside of the Chabad of Poway Synagogue Saturday, April 27, 2019, in Poway, Calif. (AP Photo/Denis Poroy)
Synagogue members stand outside of the Chabad of Poway Synagogue Saturday, April 27, 2019, in Poway, Calif. (AP Photo/Denis Poroy)

Officials say San Diego County deputies were called just before 11:30 a.m. Four patients were admitted to Palomar Health Medical Center Hospital around 12:30 p.m., spokesman Derryl Acosta said.

A handful of police cars were parked outside the synagogue in the city of Poway, just over 20 miles (32 kilometers) north of San Diego. Crime tape surrounded the street in front of the building.

Passover began on April 19 and was ending Saturday.

Synagogue members walk outside of the Chabad of Poway Synagogue Saturday, April 27, 2019, in Poway, Calif. (AP Photo/Denis Poroy)
Synagogue members walk outside of the Chabad of Poway Synagogue Saturday, April 27, 2019, in Poway, Calif. (AP Photo/Denis Poroy)

In Pittsburgh, a truck driver who authorities say expressed hatred of Jews has been charged in the Oct. 27 rampage at the Tree of Life synagogue. He’s pleaded not guilty.

Synagogue members console one another outside of the Chabad of Poway Synagogue Saturday, April 27, 2019, in Poway, Calif. (AP Photo/Denis Poroy)
Synagogue members console one another outside of the Chabad of Poway Synagogue Saturday, April 27, 2019, in Poway, Calif. (AP Photo/Denis Poroy)
Synagogue members console one another outside of the Chabad of Poway Synagogue Saturday, April 27, 2019, in Poway, Calif. (AP Photo/Denis Poroy)
Synagogue members console one another outside of the Chabad of Poway Synagogue Saturday, April 27, 2019, in Poway, Calif. (AP Photo/Denis Poroy)
Synagogue members talk to a San Diego County Sheriff's deputy outside of the Chabad of Poway Synagogue Saturday, April 27, 2019, in Poway, Calif. (AP Photo/Denis Poroy)
Synagogue members talk to a San Diego County Sheriff’s deputy outside of the Chabad of Poway Synagogue Saturday, April 27, 2019, in Poway, Calif. (AP Photo/Denis Poroy)
Television cameras film the outside of the Chabad of Poway Synagogue Saturday, April 27, 2019, in Poway, Calif. (AP Photo/Denis Poroy)
Television cameras film the outside of the Chabad of Poway Synagogue Saturday, April 27, 2019, in Poway, Calif. (AP Photo/Denis Poroy)

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