Police in the east German city of Leipzig are investigating the causes of a fire on a Ferris wheel which injured 23 people at a music festival on Saturday. An object under the ride caught fire for unknown reasons, police said on the social media platform X, before the flames spread to two of the Ferris wheel gondolas. Both were completely destroyed by the fire on Saturday evening, according to a dpa reporter on the scene at Highfield Festival, south of Leipzig. Of the 23 people injured, four suffered burns, one was hurt in a fall, and others including first responders and at least four police …