Belgian federal prosecutors say a house search in the Brussels neighbourhood of Schaerbeek has "led to the discovery of an explosive device containing among other things nails."
Investigators also found chemical products and an Islamic State flag.
Their statement said that IS had claimed responsibility for the attacks in Brussels via a press agency but that this information still needs to be verified.
Prosecutors say it's not possible at this stage to establish any links between the attacks Tuesday in Brussels and those in Paris on Nov. 13 that left 130 people dead. (AP)
Belgium's interior minister says authorities knew that some kind of extremist act was being prepared in Europe but that they were surprised by the scale of the attacks in Brussels.
Interior Minister Jan Jambon said Tuesday that "it was always possible that more attacks could happen but we never could have imagined something of this scale."
Jambon told RTL television that "we had no information about this, but we know that things were moving in Europe, in different countries, in France, in Germany, here."
He said the Belgian authorities have no information about the planning of "any kind of action in Brussels at this time." (AP)
The U.N. Security Council has strongly condemned the Brussels attacks and urging intensified regional and international efforts "to overcome terrorism and violent extremism."
A statement approved by the U.N.'s most powerful body expressed solidarity with Belgium and underlined the need to bring those responsible for "these reprehensible acts of terrorism to justice."
The Security Council again urged all countries to combat "terrorist acts" and take measures to prevent and stop the financing "of terrorism, terrorist organizations and individual terrorists."
U.N. Secretary-General Ban Ki-moon also strongly condemned the attacks and expressed confidence "that Belgium's and Europe's commitment to human rights, democracy and peaceful coexistence will continue to be the true and lasting response to the hatred and violence of which they became a victim today," his spokesman said. (AP)
The London premiere of "Batman v Superman" was scaled back Tuesday following the terrorist attacks in Brussels.
Warner Bros. said in a statement that "our hearts go out to the victims" and others affected by the deadly explosions at the Belgium city's main airport and subway. But the studio said it would go forward with the Tuesday-night premiere "rather than yield to terror."
However, interviews on the red carpet were cancelled.
The Leicester Square premiere of "Batman v Superman: Dawn of Justice" follows events in New York and Mexico City. (AP)
A Belgian security official says the death toll has risen to 34 in attacks on the Brussels airport and a subway station.
The official did not specify how many people were killed and wounded at each site. The official spoke on condition of anonymity because precise numbers were expected to be announced early Wednesday.
Earlier, the government had reported 20 dead at the Maelbeek metro station, in the heart of the European Union's capital, and 11 dead at the airport, and scores of injured.
The Islamic State group claimed responsibility for the attacks. (AP)
Police in the Belgian capital are calling on people who may have filmed images from the attacks on the city airport and subway to help assist with their investigation.
Brussels police called in a statement late Tuesday for help from "anyone who has amateur film where the attackers may be in view and could help move their investigation forward." (AP)
The Islamic State group has issued an updated communique taking credit for the Brussels attacks and threatening other countries taking part in the anti-IS coalition.
The statement promises "dark days" for countries allied against the Islamic State, threatening that "what is coming is worse and more bitter."
The communique was published in Arabic and French, and an English translation was provide by the SITE Intelligence Group, which monitors jihadi websites.
IS also released photos purportedly showing its fighters in Syria giving out candy to children to celebrate the Brussels attacks, according to SITE. (AP)