06:16 (GMT+4) Police said an explosion has torn through three adjacent homes in Belgium's northern port town of Antwerp and injured up to 20 people, Fox News reported.
Antwerp police said in a statement late Monday that most of the injuries were slight. Authorities rescued seven people from under the rubble.
Antwerp police spokesman Wouter Bruyns told VRT network: "There are about 10, a maximum 20 casualties, fortunately including many slightly injured."
The explosion ripped through the homes late in the evening. Antwerp police quickly announced that the blast was not part of a terror attack.
At least one building totally collapsed. Rescue workers were still going through the debris around midnight.
04:16 (GMT+4) At least five people were injured, including two seriously, when a gas explosion caused a building to collapse in Belgium's port city of Antwerp, AFP reported.
Police said emergency services were in contact with three people who are conscious under the debris in addition to the five people who were hurt.
They added that up to 20 people could have been injured.
Police said the cause of the explosion was not related to terrorism while Belgian media said it was the result of a gas explosion.
The Paardenmarkt area in central Antwerp was completely closed off as emergency personnel continued rescue and other operations, police said in a statement.
Two other buildings were damaged in the explosion, police said.