By declaring a major incident, the council will be able to increase the availability of street cleansing and fly-tip removal with an additional 35 vehicles and crews around the city.
Interior ministers and law enforcement from more than 40 countries are attending the meeting in central London, as well as representatives from Meta, X and TikTok.
Representatives of 40 countries will gather in London for the summit, where the UK prime minister is expected to call for greater unity to tackle the "vile trade" of people smuggling.
The Sentencing Council changed guidance to judges and magistrates to advise they get a pre-sentence report for criminals from an ethnic, cultural or faith minority.