Belgian intelligence services sent a note to French counterparts about the possible groups, and it was sent to police and anti-terrorism forces across France on Tuesday, a French security official said Wednesday. It was the latest of several recent reports that fighters from Syria could pose an imminent threat. IS has also threatened violence during the European Championship soccer tournament taking place across France this month. On April 19, Crisis Center chief Paul Van Tigchelt said there were signals from Islamic State that fighters were sent to Europe, including Belgium. French and Belgian officials said the information does not change their governments' overall understanding of the threat.

Source: ABC News June 15, 2016 11:20 UTC