THE World Cup saw its first trouble inside a stadium tonight as fighting broke out during Brazil's win over Serbia.

Punches were traded in the stands as the South Americans sealed top spot in Group E with a 2-0 win over their rivals.

Women were caught up in the melee as opposition fans grappled and hit each other at the Spartak Stadium in Moscow.

Stewards intervened to split up the warring supporters and one woman was left clearly shaken by being involved.

She was in tears after appearing to be struck and grabbed by a pair of fans wearing Brazil shirts at the end of the game.

It is unclear what started the trouble as tempers boiled over during the crucial match which decided who would make it through to the knockout stages.

During the build up to Russia 2018 there were major fears that the tournament would be beset by crowd trouble.

But in the two weeks it has been going, there have been few reports of any serious incidents as supporters enjoy the feast of football on show.

This World Cup has been one of the most enjoyable for years, with just one match ending goalless and a series of surprise results.

That atmosphere has been mirrored among supporters, with opposition fans from rival nations enjoying friendly banter but rarely any trouble.

Russian officials had sent a clear warning to trouble-makers planning to attend that they would take a zero tolerance approach to hooliganism.

And those warnings appear to have paid off, with no repeat of the kind of shocking scenes witness at Euro 2016 in France.

Then, Russian hooligans clashed with England fans in ugly scenes that left several seriously injured.

At the end of the match between the two countries in Marseille, Russian fans stormed the England section of the ground to attack indiscriminately.