Missing 14-year-old boy near Waikiki Beach

I lost my little brother, Kai Nakamura, yesterday around 3pm near Waikiki Beach, by the Duke Kahanamoku statue. He was wearing a bright red Hurley t-shirt, dark blue board shorts, and black sneakers. He’s 14 years old, about 5'4", with sandy hair and a few freckles across his nose; he also has a small birthmark on his left calf. I’m really worried and this is tearing us up—if you saw him or have any information, please reach out, even if it’s a vague sighting. Any tip could help bring him home safely.