The U.S. National Highway Traffic Safety Administration said on Monday it is expanding and upgrading a probe into about 300.000 American Honda  vehicles over reports of crashes and injuries due to their automatic emergency braking systems.

According to the reports, the automatic emergency braking system in these vehicles was triggering inadvertently, which increases the risk of a collision due to the rapid deceleration.

The problem affects the 2019-2022 models of the Honda Insight, a hybrid electric car, and the Honda Passport SUV, according to the U.S. auto safety regulator.