May 12 (Reuters) - Waymo is recalling 3,791 robotaxis in

the U.S. over a self-driving software issue that could likely

cause the vehicles to drive onto flooded roads, the National

Highway Traffic Safety Administration said on Tuesday.

Here are some details:

* The recall pertains to certain fifth and sixth generation

Automated Driving Systems (ADS) in robotaxis.

* The auto safety agency said that Waymo has modified the

scope of operations to increase weather-related constraints and

updated maps as an interim measure.

* A full remedy is currently under development, the agency

said.

* Separately, Waymo is facing an NHTSA probe after one of

its self-driving vehicles struck a child near an elementary

school in Santa Monica, California, in January.

* Last month, the National Transportation Safety Board said

it was investigating an incident in January in which Waymo

self-driving vehicles passed a stopped school bus with its

lights activated in violation of Texas state law.