According to two security sources, at least 40 people have been killed and 45 injured in a fire inside a church in the Egyptian city of Giza.
An electrical fire broke out as 5,000 people gathered at the Coptic Abu Sifin church in the Imbaba neighbourhood on Sunday.
They said the fire blocked an entrance to the church, causing a stampede, and most of those killed were children.
People were gathering on the third and fourth floors, and we saw smoke coming from the second floor. People rushed to go down the stairs and stared at each other, said Yasir Munir, a worshipper at the church.
He said that he and his daughter were on the ground floor and were able to escape when the bang and sparks and fire came out of the window.
Giza, Egypt's second-largest city, lies just across the Nile from Cairo.
"I offer my sincere condolences to the families of innocent victims who have passed on to be with their Lord in one of their houses of worship," said Egyptian President Abdel Fatah al-Sisi in a tweet.