The Takata airbag recalls are not over yet. Letters received from safety regulators show that at least seven more companies have been affected by the defective airbags, according to the Wall Street Journal.

The numbers are still rising, but as of now 23.4 million airbags that were produced by Takata have been recalled. This recall has affected more than 19 million U.S. vehicles and spans across 11 companies, according to the BBC.

Eight deaths and more than 100 injuries have been attributed to these faulty airbags, according to the BBC.

A few of the 11 companies affected include Fiat Chrysler and Honda Motor Co., according to the Wall Street Journal. Letters were sent by the National Highway Traffic Safety Administration to the seven other companies that might also have been affected, which include: Mercedes-Benz, Jaguar-Land Rover, Suzuki Motor Corp., Tesla, Volvo Trucks, Volkswagen and Spartan Motors.

The NHTSA is giving these companies 21 days to respond, asking them whether their vehicles have been affected and if they plan on ordering any recalls, according to Bloomberg.

Twenty-three million airbag inflators have been recalled and replaced because of a fault that causes the airbag to deploy with too much force, pushing out plastic and metal at the same time as it opens the airbag, according to Bloomberg. They have narrowed down the cause to chemical propellant in the inflators.