Two goals each by Romelu Lukaku and Eden Hazard and a late Michy Batshuayi strike earned Belgium a 5-2 victory against Tunisia in their 2018 FIFA World Cup group stage encounter.
Chelsea forward Hazard opened the scoring at the Spartak Stadium in Moscow with an early penalty.
Manchester United striker Lukaku struck either side of Tunisia defender Dylan Bronn's header.
Hazard then doubled his tally after being picked out by Tottenham Hotspur defender Toby Alderweireld.
Chelsea striker Batshuayi added a fifth late on, ahead of an added-time consolation from Wahbi Khazri, the Sunderland winger.
Belgium, under the guidance of former Everton manager Roberto Martinez, move top of Group G after back-to-back wins.
Their next opponents are England on Thursday 28 June, when Tunisia face Panama.
Chicharito cheer
Mexico qualified for the knockout stage with the help of a Chicharito strike.
The West Ham United forward scored his 50th international goal in a 2-1 win over South Korea at the Rostov Arena, after Carlos Vela, the former Arsenal forward had converted a penalty.
Spurs' Son Heung-min was on target in added time for the Asian side.
Mexico next meet Sweden on 27 June, when South Korea face Germany.
Gundogan glee
Ilkay Gundogan, of Manchester City, and Chelsea's Antonio Rudiger helped Germany beat Sweden 2-1 in Sochi.
Man Utd's Victor Lindelof must have thought his side were on course for victory when Ola Toivonen gave them the lead.
But Marco Reus' effort and Toni Kroos' stoppage-time free-kick kept German hopes of progressing alive.