Brussels police hold man as gas canisters found in car

Belgian police and soldiers on Thursday sealed off part of central Brussels after finding gas canisters in a car driven by a man known to have been radicalised, officials said.Belgium remains on high alert as it prepares to mark the first anniversary of last year's Islamic State-inspired attacks on the Brussels metro and airport which killed 32 people.Reports said he had previously gone to Syria but officials did not confirm that.