Cardiff Council is launching its 'Usual Suspects' litter campaign.
It aims to reduce the amount of litter in the city and ensure that the streets of the capital are kept clean.
It costs taxpayers around £7m a year to keep the city clean with cigarette butts, chewing gum and dog mess often on streets.
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Wales have qualified for the Euro 2016 quarter finals after beating Northern Ireland 1-0 in Paris.
A rally has been held in Cardiff following the EU referendum to show support to migrant communities.
It's 0-0 at half time in Paris as Wales face Northern Ireland in the last 16 of Euro 2016.