The following information is summarized from this Express UK article:
A migrant from Algeria who attacked two female police officers with a machete in Belgium earlier this month had already been attempted to be deported twice, according to local officials.
The man attacked the two women outside the police station in Charleroi on August 6, lunging and hacking at their heads with a machete while shouting “Allahu Akbar.” One of the victims received severe facial wounds but they have been described to be not life threatening. The other officer was less seriously injured. The attacker was shot in the chest by a third officer and later died.
Police said the suspect was known to authorities for “minor common” offenses but had no known terrorist connections.
Belgium twice tried to deport the man but authorities claim that it is not known how he was able to stay in the country.