Prosecutors said the two were arrested in the early hours in their homes on Milan's northern outskirts after a two-year investigation.
"We saw it again yesterday in Brussels. All European states are vulnerable, and there is indeed a resurgence of Islamist terrorism," Macron said.
A teacher was killed in a knife attack in Arras, and the investigation was handed to the anti-terrorism prosecutor's office.
No group has claimed responsibility for the blast, which comes amid a surge in attacks claimed by militant groups in Pakistan.
The attacks sparked the NATO-allied US invasion of Afghanistan and Iraq and began the global war on terror.
We turned our back on the people, including women and children, whom we said we were going to protect.
"This extremist government will suffer a resounding defeat, which would lead to their withdrawal from the entire West Bank,” Al-Arouri said.
IRGC leaders have encouraged violence against and parroted conspiracies regarding Jews. The talks have reached tens of thousands of people.
The cleric stressed that "Hezbollah and the resistance want to change the balance of powers in Lebanon and in the region."
Lebanese politicians have the opportunity to show how “patriotic” they each are by claiming to demand something they didn’t care about a few months ago.