According to Fabien Didier, Controller General and head of the Moselle fire service, emergency services were alerted at 1.19pm to a "vegetation fire near the church." Upon arrival, "they unfortunately observed smoke coming from the bell tower." Fanned by winds that reached gusts of 50 km/h on Thursday afternoon, "the fire spread rapidly to the entire roof of the church."
https://today.rtl.lu/news/world/church-in-montenach-destroyed-as-flames-consume-roof-and-bell-tower-2027212807