As the blaze in the north Brussels suburb erupted, residents heard at least one explosion and Belgian media reported a bomb attack.
People fled from an airport terminal and onto the tarmac after reports of a gunman and shooting at LAX Sunday night, but the reports were unfounded.
A shooting victim trying to drive himself to the hospital in Chicago caused a car crash that injured four people, including two children.
A tropical depression brewing off Florida's coast threatens to bring heavy rains and potential floods.
The ISIS-affiliated Amaq news agency said the attack was carried out by one of the group's fighters.