Firefighters from Maidenhead attended a crash in Ascot Road on Sunday morning.
A car collided with a telegraph pole but the occupants suffered only superficial injuries.
They were checked by paramedics and the crew, who arrived at about 4am and were there for about one and a half hours.
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The Met Office has issued a yellow alert for Windsor and Maidenhead, Slough and Wokingham, warning that rain moving eastwards across the south of the country may turn to snow in some places.