Many Jews will refrain from consuming food or drink during the holiday’s 25-hour period.

Authorities said the man believed responsible was a 35-year-old British citizen of Syrian descent named Jihad Al-Shamie, who entered the U.K. as a young child and became a citizen in 2006.

Two Jewish men were killed and three other men were seriously injured in a terror attack outside a synagogue in the northern English city of Manchester on Thursday, authorities said.

Two people have been killed and four wounded outside a Manchester synagogue packed with worshippers on a Jewish holiday, UK police said, adding they shot dead the suspect in the “terrorist attack”.

The attack, which police have said was a terrorist incident, came on Yom Kippur, the holiest day in the Jewish religious calendar.