(Reuters) -Newcastle United said French police "indiscriminately assaulted" several of their supporters and used pepper spray, batons and shields while escorting visiting fans from the stadium after Tuesday's 2-1 Champions League loss at Olympique de Marseille.

The Premier League side said on Thursday they would formally raise their concerns with UEFA, the host club and French police over the "unnecessary and disproportionate" force their fans were subjected to.