A partnership between Uber Technologies Inc. and online-delivery service Gopuff is being investigated by the Federal Trade Commission over potential anti-competitive behavior, The Information reported Tuesday.

According to the report, antitrust regulators are also conducting a parallel investigation into Uber's proposed $1.1 billion acquisition of alcohol-delivery service Drizly.

Citing a document and sources familiar with the matter, The Information reported that while the probes are separate, they are investigating the same underlying issue — whether the deals with the Uber Eats business would harm competition in the online sale and delivery of alcohol and convenience-store items.

The Uber-Gopuff investigation was reportedly launched in June, shortly after the companies announced a partnership. Last year, Gopuff bought West Coast alcoholic-beverage retailer BevMo for about $350 million.

Uber shares UBER, +0.58% fell 0.5% in after-hours trading Tuesday after the report was published. Uber is down about 15% year to date, though up nearly 40% over the past 12 months.

*By Mike Murphy, MarketWatch*