Smoke is seen rising from a London amphibious vehicle in the distance after dozens of tourists on board leapt into the river Thames to escape.<br/> <br />The London Fire Brigade said 30 people were rescued from the water but no-one was seriously hurt.<br/> <br />Flames and smoke engulfed the Second World War-era vehicle near the houses of Parliament on Sunday.<br/> <br />The damaged vessel known as a Duck was later towed away.<br/> <br />The cause of the fire isn't yet clear.
