At least 37 people were killed and more than 100 injured in two separate Palm Sunday bombing attacks at Coptic Christian churches in Egypt. The first blast happened at a church in the Nile Delta town of Tanta, where at least 26 people were killed and 71 others wounded, officials said. A second attack was later reported in Alexandria, leaving at least 11 dead, and 35 injured.

No one immediately claimed responsibility for the attacks, which come a week before Christians worldwide will celebrate Easter. “Either a bomb was planted or someone blew himself up,” provincial governor Ahmad Deif told the state-run Nile TV channel, Sky News reported. The attack in Tanta was the latest in a series of assaults on Egypt’s Christian minority, which makes up around 10 percent of the population and has been repeatedly targeted by Islamic extremists. MORE