AT&T Inc. and Verizon Communications Inc. said they agreed to delay their rollout of a new 5G service for two weeks, reversing course after previously declining a request by U.S. transportation officials.

AT&T said late Monday that the company had voluntarily agreed to an additional two-week delay, at the request of the U.S. Transportation Secretary Pete Buttigieg. Verizon also said it had agreed to a two-week delay that would ensure the new service would go live in January.