After being frustrated by the Irish in the first half, Belgium broke through when Everton striker Lukaku struck three minutes after the restart, atoning for his profligacy in front of goal in Monday's 2-0 loss to Italy.
Switzerland draw 1-1 with Romania at Euro 2016
Midfielder Axel Witsel headed home in the 61st minute and Lukaku got his second and Belgium's third 20 minutes from the end as the highly-fancied Red Devils came good, albeit against a limited Ireland team who worked hard but created little.
COMMENTS
Comments are moderated and generally will be posted if they are on-topic and not abusive.
For more information, please see our Comments FAQ