Mathieu Van Overstraeten was with his daughter and her boyfriend watching Belgium play Sweden in their Euro 2024 qualifier match in Brussels when a family member warned of a possible shooting in the Brussels capital. Mobile phone networks quickly became overloaded, Van Overstraeten said, as people sought details from outside. Sweden in August raised its terror alert to the second-highest level, warning also of an increase in threats against Swedish interests abroad, after Koran burnings and other acts in Sweden against Islam's holiest text outraged Muslims and triggered threats from jihadists.