Police have released images of two men after projectiles, including a glass bottle, were thrown towards the pitch during Millwall FC's clash with Crystal Palace.
The objects were thrown from the home end during the second half, which took place at The Den on Saturday (January 8).
Officers wish to speak to the two men pictured.
Inspector Matt Ashmead, from the Central Football Unit, said: “The vast majority of football fans go to matches simply to enjoy themselves and support their team.
“Sadly, a small minority are intent on causing trouble and resorting to violence. We are committed to identifying them and ensuring they face appropriate sanctions.
“We have a close relationship with clubs across London and in this case, we have worked with Millwall to identify those involved.
“I would appeal to the public to come forward with any information that could help us to identify the two men.”
Anyone with information should call police on 101, giving the reference 3200839/22.
Information can also be provided to Crimestoppers, anonymously, on 0800 555 111
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