United Airlines CEO Scott Kirby says they have been closely tracking the impact of Typhoon Mawar on Guam. 

"We are in the process of conducting wellness checks on nearly 800 employees based there, as well as with our layover crews," he said in a social media post Friday morning. 

Kirby says United is coordinating humanitarian efforts with the American Red Cross and Air Link Flight to send supplies, first responders, and cargo to the island. United will send an aircraft from Manila to carry supplies to the island on Friday. Another flight with aid is set to take off from San Francisco, California to Guam this Saturday. 

He says the airport is closed for commercial flights until at least June 1.

"We also have many employees who are displaced from GUM and are anxious to get back to their families, so we also are working with customs to add some extra passengers to our relief flights," Kirby stated. "Please stay safe and know that we’re working hard today - and for as long as it takes – to help rebuild the community."