Police have declared a second dispersal zone across parts of London ahead of Saturday's grudge match between Millwall and West Ham.

The new measure, implemented by the City of London Police, covers the Square Mile as well as several bridges spanning the Thames. The order came into effect at 8am on Saturday morning and remains active until 8pm.

Under a Section 35 order, officers are granted legal authority to direct individuals to vacate a specified public area if they are deemed to be contributing to crime, anti-social behaviour, or disorder.

A spokesperson for City of London Police explained the decision, stating: "To assist the policing operation around the Millwall v West Ham match, from 8am today, we're putting a S35 order in place. If someone is contributing to crime, disorder or anti-social behaviour, they can be told to leave and not return for a specified period. It lasts until 8pm."

This secondary measure follows an initial Section 35 dispersal order enacted earlier in the week by Metropolitan Police chiefs. That order applies directly to the area surrounding Millwall's home ground, The Den, and neighbouring residential streets.

The Metropolitan Police also reminded supporters that standard stadium legislation will be strictly enforced during the event. "As with any fixture, the Sporting Events Act 1985 is in place, which means entering or attempting to enter a ground while intoxicated is strictly prohibited," the force said. "A Section 35 dispersal order will also be in place, allowing officers to remove anyone causing disorder."

The fixture is scheduled for a 12:30pm kick-off on Saturday, September 19. It marks the first time the two east London clubs have faced each other since 2012, ending a 14-year hiatus and serving as the 100th competitive meeting between the sides.

West Ham enter the match as the form favourites. After suffering relegation from the Premier League last season, the Hammers have had a strong start to the new campaign and currently sit at the top of the Championship table.

Millwall, who missed out on promotion following a defeat in the play-off semi-finals last term, are currently placed twelfth in the league after seven matches.

For fans and local residents travelling across central London and near the river crossings, the two concurrent police orders mean significant restrictions are in place until the evening. What we do not know yet is how the policing operation will manage post-match transport flows once the final whistle blows.

I'll be following this one — check back for updates.