Erling Haaland scored a hat-trick to pass 50 international goals in record time as Norway cruised to a 5-0 thrashing of Israel on Saturday, edging closer to qualifying for a first World Cup finals since 1998.

Before the match in Oslo, hundreds of people attended a pro-Palestinian demonstration, chanting "Free Palestine" to protest against Israel's "genocide" in Gaza.

Norwegian police dispersed a gathering of pro-Palestinian activists with tear gas and made several arrests.

Inside the Ullevaal Stadium, several dozen Israeli fans waved their country's flag and a banner reading "Let the Ball Talk!".

Norway now lead Group I with 18 points, six more than second-placed Italy, who beat Estonia 3-1 in Tallinn to stay on track for qualification.

The comfortable win in Oslo leaves Norway firmly in control of the group as they seek a place at next year's finals in the United States, Canada and Mexico.

After a meek performance, Israel take on Italy in Udine on Tuesday knowing they must win to keep alive their fading hopes of qualifying.

Haaland became the fastest player in men's international football to reach 50 goals for his country and now boasts 51 goals for Norway in just 46 games.

In Lisbon, Cristiano Ronaldo had a second-half penalty saved by the legs of Republic of Ireland goalkeeper Caoimhim Kelleher but Portugal stole the win in injury time when Ruben Neves scored with a header.

Neves wore the number 21 shirt in tribute to his late international teammate Diogo Jota, who was killed in a car crash this year. Jota wore 21 for Portugal.

The hard-fought 1-0 victory puts the Portuguese five points clear of Hungary at the top of Group F.

The Hungarians beat Armenia 2-0 and the Irish and Armenia face a do-or-die match in Dublin on Tuesday.

European champions Spain kept their perfect record in qualifying intact by defeating Georgia 2-0 thanks to goals from Yeremy Pino and Mikel Oyarzabal.

Turkey remain three points behind them in Group E thanks to a thumping 6-1 defeat of Bulgaria in Sofia.

Albania have never qualified for a World Cup but have a chance of being in the finals next year after a 1-0 win at Serbia thanks to a goal from Rey Manaj.

The Albanians are second in Group K behind England and four points clear of third-placed Serbia. (AFP)