The Air Ambulance landed at Riverside Park just before 4pm on Monday (July 1).
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The pilot was seen to check the helicopter, which he explained to onlookers was a standard procedure.
The reason for the landing is unknown, but emergency vehicles were also reported seen and heard around the area at the time, and there was speculation on social media that the visit was linked to incidents in the Osborne Road South / Lawn Road area of St Denys.