Humberside Police have said they are considering the possibility that the "mosque was targeted for racial reasons," but stressed that it would not be fair to speculate on this at present.
They said there was was "no suggestion" of a link between two separate offences - a fire at the mosque last night, and reports of youths damaging the building on Thursday.
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Rain will affect northern England and Wales later in the day, particularly over the hills. Elsewhere it will be drier but breezy.
The Chancellor will promise to fix a glitch, which means repayments continue to be taken for up to 12 months after the loan is paid off.
The proposal will see the introduction of a discounted railcard for 26-30-year-olds, as the government looks to lessen the cost of living.