BRUSSELS (Reuters) - European Competition Commissioner Margrethe Vestager will hold a news conference at 1200 CET (1000 GMT) on antitrust cases, the Commission said in a statement on Thursday.

The Wall Street Journal said that the EU's antitrust regulator was due to file additional formal charges against Alphabet Inc's <GOOGL.O> Google related to contractual terms of its advertising service and conduct over its shopping service.

(Reporting By Philip Blenkinsop; editing by Robert-Jan Bartunek)