MADRID (Reuters) -Spain's antitrust regulator said on Tuesday it was expanding its investigation into possible anti-competitive behaviour by Apple for allegedly imposing unequal commercial conditions on developers of mobile applications sold at its app marketplace.

The wider probe will examine whether the tech giant set pricing schedules at its App Store, abusing its dominant position, the CNMC said in a statement.

Apple has denied the allegations since the CNMC launched its investigation a year ago.