From 5.30pm, Belgrave Road in Leicester will be closed to traffic to make way for the annual Diwali Day celebrations.
The road will reopen at 9.30pm.
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Ahead of the conference, calls are growing for Midlands regions to have their own devolved powers to match those on offer to Scotland.
After a cool start, Sunday looks set to be a dry and bright day, with sunny spells.
Mainly dry with clear spells but possibly one or two light showers near coasts overnight, remaining largely dry on Sunday.