Belgian police have arrested six people in Brussels as a major investigation continues into attacks that claimed 31 lives in the city on Tuesday.
The arrests were made in the Schaerbeek district. Separately, in France, a suspect who was plotting an attack has been arrested near Paris.
The Brussels bombings have been linked to last November’s Paris attacks.
US Secretary of State John Kerry, visiting Brussels, said that so-called Islamic State (IS) would be destroyed.
IS claimed the attacks in both Paris and Brussels.
Standing alongside the Belgian Prime Minister, Charles Michel, he expressed condolences for the victims and solidarity with Belgium, declaring “Je suis Bruxellois”.
The Western alliance would continue its fight to destroy IS, Mr Kerry said.
“We will not be intimidated. We will not be deterred.”
The arrests in Brussels were made late on Thursday, and followed house-to-house searches. Residents said they heard explosions during the police raids.
Belgian media reports on Friday suggest a seventh arrest has also been made in the Forest district of Brussels.
Also on Thursday evening, French police launched an anti-terrorism operation in Argenteuil, north-west of Paris, following the arrest hours earlier of a man suspected of planning an attack.
Interior Minister Bernard Cazeneuve said the suspected militant, a French national, was in an “advanced stage” of a plot.
The suspect, named as Reda Kriket, 34, was convicted in his absence by a Brussels court last year for recruiting IS members to go to Syria, officials say.
He was sentenced along with Abdelhamid Abaaoud, considered the main organiser of the Paris attacks and killed in a police raid in Paris days later.
- MSNBC Host Suggests Scalise DESERVED To Be Shot — The Reason Why Will Have You FUMING!
- Why We Carry: Man Punches Girl 39 Times in Empty Parking Lot After ‘Laying in Wait’ [WATCH]
- Dude Starts Freaking When Chick Places Snake on His Lap in Most Hilarious Video
- World’s Longest Shot Takes 10 Seconds to Wipe Out Target, an ISIS Militant
- ALERT: US Official Arrested For Giving Chinese Agent Top-Secret…
- What Really Killed Otto Warmbier
- Die-In Protesters Against Trump’s Healthcare Bill Get Rude Awakening by Motorcyclist [WATCH]
- Migrants Kill Motorist by Dragging Tree-Trunks to Stop Traffic, Hijack Cars
- Hillary Clinton & Co. About to be Stripped of Security Clearance
- National Security Council Unable to Release Susan Rice Documents Because They’re in Obama’s…
- WATCH: Why Poor People Shouldn’t Run the Economy
- Protesters Interrupt Trump During Time For Prayer — The President’s Reaction Is Priceless
- Insane! Sex Offender Rapes Neighbor’s 7yr-Old Daughter Weeks After Being Released from Prison
- Professor Publishes ‘#LetThemF*ckingDie’ Article About White People, Now Playing The Victim…
- Watch: Dude Performs Erotic Drag Show for Elementary & Middle School Kids
- Democrat on Scalise Shooting: ‘I’m F**king Glad He Got Shot’ [AUDIO]
- Nationwide Manhunt for This POS — Murdered Multiple Women, Considered Armed and Dangerous
- Insane! Man Faces Jail Time for ‘Disturbing’ Manatees by Throwing Bucket of…