Belgium's Sudpresse is reporting that police chased a suspect BMW 5 series car last night at around 19:30 local time in Rocourt, a suburb of the Belgian town of Liege.
The car was later found at around midnight abandoned in a street in Rocourt, and police then building in front of where the vehicle had been parked. The driver of the car is apparently still on the run.
But there are no indications that the driver was Salah Abdeslam, the subject of a major international manhunt in connection with the November 13 Paris terror attacks, and there was no indication that Abdelslam was in the raided building, Sudpresse says.
The BBC's Charlotte Gallagher says that there were barely any cars or people on the streets in central Brussels this morning, amid a security lockdown.
Christmas music is playing in one of the few shops open in the city center -- but there are hardly any shoppers.
British Prime Minister David Cameron has issued a press statement following his meeting this morning with French President Hollande.
Cameron said that he and Hollande discussed ways to strengthen counter-terrorism cooperation between London and Paris and work together to defeat IS.
Cameron also slammed the lack of information and intelligence sharing among EU countries, saying that it was "frankly ridiculous we can get more information from countries outside the EU than we can from each other."
A "pan-European effort" was needed to "tackle the threat of returning foreign fighters," he added.
Cameron also said that he supports striking IS in Syria but added "that will be a decision for Parliament to make.
In the meantime, the UK has offered France the use of RAF Akrotiri, a Royal Air Force station on Cyprus, for French aircraft engaged in anti-IS operations as well as additional assistance with air-to-air refuelling.
Cameron said that he and Hollande had also discussed "ongoing efforts to secure a political solution in Syria."
AFP have tweeted these images of Belgian troops patrolling in Brussels today.
The Wall Street Journal is reporting on another impact of the November 13 Paris attacks -- French economic growth slowed following the attacks and the subsequent tightening of security, according to surveys.
Belgians have responded to a request from police to refrain from tweeting about the antiterror raids ongoing in the country by tweeting humorous pictures of cats instead, using the hashtag #BrusselsLockdown
The request for a social media blackout was presumably to make it harder for suspects to obtain real-time information about where the police operations were happening.
Twitter users from around the world are also posting cat pictures in solidarity with the people (and cats) of Brussels.
The BBC's Katya Adler has tweeted that Belgium's Interior Minister says that as the antiterror operations are continuing in the country it is "hard to say" what action the government will take tomorrow or the day after.
The Financial Times is reporting that Belgian stocks are holding up "relatively well" this morning despite Brussels entering its third day of lockdown after the Belgium's prime minister warned for a "serious and imminent" threat of Paris-style attacks.
Despite 19 raids and 16 arrests overnight, Belgian national Salah Abdeslam has still not been found and remains on the loose today.
Abdeslam is wanted in connection with the November 13 Paris attacks.
Belgium is keeping Brussels on maximum alert today, saying that it still faces a serious and imminent threat of attacks like the ones in Paris that killed 130 people on November 13.
Prime Minister Charles Michel has said the Brussels metro, universities and schools will remain closed today.