BEIRUT (AFP) - The Islamic State group (ISIS) claimed responsibility on Sunday (Aug 7) for an attack that wounded two policewomen in the Belgian city of Charleroi, saying the machete-wielding assailant was a "soldier" of the group.

Quoting an unidentified source, the ISIS-linked Amaq Agency said Saturday's attack came "in response to calls to target citizens" belonging to countries in a US-led coalition bombing ISIS in Syria and Iraq.

The assailant died on Saturday after being shot by officers. Police said on Sunday he was a 33-year-old Algerian with the initials K.B.

Belgium on Sunday opened a terrorism probe into the attack, the latest in a string of extremist assaults in Europe.

"We have been informed by federal prosecutors that an investigation has started for attempted terrorist murder... given certain elements (in the case)," Prime Minister Charles Michel told reporters.

Mr Michel, who saluted the courage of the police victims, was referring to the attacker's cry of "Allahu Akbar" (God is greatest) during the assault in front of a police station.

Police spokesman David Quinaux told broadcaster RTL-TVI the assailant had "taken a machete out of a sports bag he was carrying and dealt very violent blows to the faces of the two policewomen".

Belgium has been on high alert since suicide bombers struck Brussels airport and a metro station near the European Union's institutions on March 22, killing 32 people.

Those attacks were claimed by ISIS, which controls large areas of territory in Iraq and Syria and has claimed numerous terror strikes in Europe over the past year.