Earlier, it was reported that Abdeslam was injured and holed up during an anti-terror raid in Brussels.
"Anti-terrorist operation in Molenbeek: a man killed by special units, Salah Abdeslam was arrested," the RTL broadcaster tweeted.
Minutes earlier, the network cited counterterrorism expert Claude Moniquet as saying Abdeslam was detained. He is thought to have rented a car used by the shooters at one of the November 13, 2015, Paris attack sites.
A large-scale counterterrorist operation commenced in the northwestern suburb of Molenbeek on Friday. Belgium's media outlets cited witness accounts of grenades being used.
The Belgian secretary of state for asylum and migration, Theo Francken, has confirmed that Abdeslam had been arrested. "We got him," the minister said.
Abdeslam has been at large following a string of near-simultaneous terror attacks in the French capital on November 13. The man reportedly had second thoughts about blowing up his suicide belt and fled Paris together with two accomplices.
French President Francois Hollande has confirmed on Friday that the anti-terror operation in Brussels is connected to Paris attacks.
Earlier this week, special forces in Brussels killed Mohamed Belkaid during an anti-terrorist raid, which was linked to the investigation into the November Paris attacks. The suspect was shot as he was trying to fire at police.
Belgian police raided the notorious Molenbeek neighborhood after fingerprints of Paris attacks fugitive Salah Abdeslam had been found in a Brussels apartment, Belgian broadcaster VTM reported.
A dozen of gunshots rang out in Molenbeek outside the house that was raided in the afternoon, VTM said. Residents were reportedly urged to come out with their hands up.