New York City’s rideshare regulator said Uber Technologies Inc. and Lyft Inc. are “spreading disinformation” in emails sent to drivers and riders about proposed rules that would give drivers a roughly 6% pay hike.

The Federal Trade Commission reportedly launched a last-minute probe into whether Uber and Lyft illegally colluded to keep New York City driver pay lower — an inquiry launched on the same day that Lina Khan announced she was stepping down as chair of the agency.