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Ms Logan's coffin, draped in the Union flag, was carried atop an aerial ladder platform fire engine.

Crews were sent to the scene at the junction of Scott Street and South Street at about 01:30 and about 11 fire engines remained at the scene by 08:00.

The company started manufacturing vans and fire engines in the early 1900's but soon switched its attention to building buses and it now specialises in electric and hybrid buses.

On Tuesday morning, a Portuguese fire engine and four vehicles carrying German police arrived.

Earlier on Tuesday, a Portuguese fire engine and four vehicles carrying German police arrived on the search site - which is around 3.5 miles from the resort where Madeleine was last seen.