An estimated 5,000 people are celebrating the Sikh festival of Vaisakhi in Gravesend, Kent. The two-hour street procession set off from the Guru Nanak Darbar Gurdwara at 1130. It commemorates the birth of Sikhism. It is also the Sikh New Year festival.
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Tuesday's weather for the west of the region
Tuesday's weather for the east of the region
Causes are thought to be climate change, fisheries, disease, and pollution.