An American man has drowned while proposing to his girlfriend underwater on holiday in Tanzania.
Steven Weber and his girlfriend, Kenesha Antoine, were staying in a submerged cabin at the Manta Resort, off Pemba Island.
Footage shows Mr Weber diving under water to ask Ms Antoine to marry him.
In the video, Mr Weber presses a hand-written proposal note against the cabin window as Ms Antoine films from inside.
Ms Antoine, confirming Mr Weber's death in a Facebook post, said he "never emerged from those depths".
The Manta Resort told the BBC Mr Weber "tragically drowned while free diving alone outside the underwater room" on Thursday afternoon.
"It is with the deepest regret that we inform that a fatal accident occurred at The Manta Resort on Thursday 19 September, 2019," the resort said in a statement.
Matthew Saus, CEO of the resort, said "everyone is shaken to the core" by Mr Weber's death.
Mr Weber and Ms Antoine had booked four nights at the resort's underwater room, which lies approximately 250m (820ft) from the shore.
Costing $1,700-a-night, the cabin is anchored in water around 10m (32ft) deep.
On the third day of their stay, Mr Weber, from Baton Rouge, Louisiana, plunged into the water to make his proposal.
Wearing a mask and fins, he held a note against the cabin's glass window as Ms Antoine watched on from within.
His note read: "I can't hold my breath long enough to tell you everything I love about you. But... everything I love about you, I love more every day!"
Later in the video, Mr Weber turns over the sheet of paper to reveal the proposal, before pulling an engagement ring from his shorts and swimming out of view.
Mr Saus told the BBC his staff responded to a "problem in the water", but when they arrived "absolutely nothing could be done".
Antoine later took to her Facebook and wrote a heartbreaking post for Weber and shared images of them together from the vacation. The post read, "There are no words adequate enough to honor the beautiful soul that is Steven Weber, Jr. You were a bright light to everyone you encountered. You never met a stranger, and you brought so much joy to so many people. You were kind, compassionate, you regularly made me cry with laughter, and you showered me with a love like none I'd ever experienced."
She added, "You never emerged from those depths, so you never got to hear my answer, 'Yes! Yes! A million times, yes, I will marry you!!' We never got to embrace and celebrate the beginning of the rest of our lives together, as the best day of our lives turned into the worst, in the cruelest twist of fate imaginable. I will try to take solace in the fact that we enjoyed the most amazing bucket list experiences these past few days, and that we both were so happy and absolutely giddy with excitement in our final moments together."
She also wrote, "Just a couple days before you died, you said to me, 'I've seen a few cancer patients on this trip, and it dawned on me that this is a once-in-a-lifetime thing that people want to experience before they die. And here we are in the prime of our lives doing this. We are so blessed.'"
"Yes, we were, my perfect love, my angel, my soul. Yes, we were, and I will carry the blessing of the love we shared with me forever. I will find you and marry you in the next lifetime, and the next, and the next, and the next... I love you so much, and I always will," she said.
The US Department of State said it is aware of the death of a US citizen in Tanzania, in East Africa.
"We offer our sincerest condolences to the family on their loss," a spokesperson said. "We stand ready to provide all appropriate consular assistance."