DoorDash is in exclusive talks to acquire Instacart, according to people familiar with the matter.

A deal is far from certain and the talks could fall apart, the people cautioned. It could not be determined what price was under discussion or how a deal would be structured.

Instacart declined to comment. DoorDash did not immediately return a request for comment. Instacart’s sale process was first reported by the Information. The Information also reported that Uber was interested in a deal for Instacart, but Bloomberg later reported that that interest had cooled.

A combination would create a home-delivery giant, fusing Instacart’s grocery-store centric platform with DoorDash’s restaurant-focused one. DoorDash previously bid for Instacart in 2021, but at a significantly higher valuation. Those talks collapsed over price and worries about antitrust pushback, neither of which hold true today. Instacart has a valuation of roughly $12 billion, but at a conservative premium would likely fetch around $15 billion. DoorDash has a market capitalization of roughly $75 billion.