** Shares in Spanish meat casing maker Viscofan VIS.MC fell by as much as 18% after a media report on Tuesday alleged environmental violations happened at its Danville factory in Illinois, U.S..
** Viscofan in a statement categorically denied the allegations it had failed to comply with environmental regulations and said its Danville plant complies with strict environmental measures.
** Shares later recovered to trade 13.4% lower, but still had their worst day since October 2018.
(Reporting by Javi West Larrañaga; editing by Barbara Lewis)
((javier.west@thomsonreuters.com; +34 918 35 61 12))