LeBron James Breaks Silence On Bronny's Cardiac Arrest, 'Safe And Healthy'

LeBron James is breaking his silence on Bronny's medical scare ... assuring fans his family is "safe and healthy," and sharing his appreciation for all the support over the past few days.

"I want to thank the countless people sending my family love and prayers," the Lakers superstar tweeted on Thursday morning. "We feel you and I'm so grateful. Everyone doing great. We have our family together, safe and healthy, and we feel your love."

"Will have more to say when we’re ready," James added, "but I wanted to tell everyone how much your support has meant to all of us! #JamesGang👑"

Bronny initially suffered cardiac arrest on Monday ... while he was working out at USC. He was rushed to Cedars-Sinai Medical Center -- but, thankfully, he's been making steady progress ever since.

It's unclear what caused the issue and when Bronny will be able to return home -- but when he does eventually get out ... several people who have suffered similar medical emergencies have already said they'll be there for him if he needs them.

LeBron's former teammate, Ronny Turiaf -- who needed open-heart surgery in 2005 -- said he'd be "always available" to talk.

Shareef O'Neal, meanwhile, said he too would be down to chat with Bronny -- revealing Thursday he's already reached out to his good friend.