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Porto's clash with Estoril was abandoned amid fears one of the stands was about to collapse.

The two sides were facing off at the Estádio António Coimbra da Mot.

The stadium was built in 1939 but the away stand was recently constructed.

Cracks began to appear in the foundation of the stands with police and security officials urging supporters to move out of the stand.

There were around 2,500 away supporters in the stand for the Portuguese top-flight clash.

(Image: AFP) (Image: AFP) (Image: AFP) (Image: REX/Shutterstock)

Supporters fled onto the pitch with others joining the Estoril fans in the home end, although the numbers led to concerns regarding over-crowding.

The encounter was delayed at half-time as Estoril sought advice from security and police forces inside the ground.

After a long delay, it was decided the game could not go ahead as the necessary security conditions had not been met.

(Image: AFP) (Image: REX/Shutterstock)

Estoril led 1-0 at the time of the postponement after Eduardo's early strike,

The second-half of the encounter could be played on Tuesday, although there is no way the stand will be fixed in time.