The American Federal Trade Commission (FTC) has requested additional information from Amazon.com and iRobot over the e-commerce giant’s $1.7 billion acquisition of the Roomba vacuum maker.

In a filing on Tuesday, iRobot claimed that the FTC had asked for more information on the transaction on September 19, 2022, which would increase the number of smart home devices Amazon offers.

Concerns over privacy and Amazon’s existing dominant position in the market for smart home devices have led a group of about 20 pro-privacy and worker organizations to appeal to American antitrust officials to stop the merger.

According to a Politico report, the FTC investigation, which was launched earlier this month, looks into the head-to-head competition as well as whether the transaction would improperly increase the e-commerce company’s market share in the connected device industry and the overall retail market.