Hopes of finding Cardiff City striker Emiliano Sala alive were continuing to fade this morning, as it emerged the Argentine had sent relatives a desperate message shortly before the light aircraft he was flying in disappeared over the Channel.
Floating objects have been found in the water, and police on the British island of Guernsey, which sits off the north coast of France, have warned the chances of the passengers surviving were "slim."
As rescuers in three planes and a helicopter scoured the sea, local media outlets reported that Sala sent a final message before the plane disappeared from radar around 20 kilometres (12 miles) north of Guernsey on Monday night.
"I'm on a plane that looks like it's going to fall apart, and I'm leaving for Cardiff," the 28-year-old said in a WhatsApp audio message.
The pilot, the only other person in the plane, was named in British media as 60-year-old Dave Ibbotson, a married father of three from Scunthorpe in northern England.
Sala, who signed with the Premier League club on Saturday from French Ligue 1 club Nantes for a reported fee of 17 million euros (US$19.3 million), was due to attend a training session with Cardiff on Tuesday.
In Sala's hometown of Progreso, his father Horacio told the press that as "the hours go by and I don't know anything, it makes me fear the worst. We were in touch on Sunday. He was so happy that he was going there, to an even bigger club."
The president of the club where the forward began his career said that these are "difficult hours" for all the locals.
"There's great sadness and lots of uncertainty," San Martín de Progreso president Daniel Ribero said. "He's an example for all youth. A humble kid. He would always return to Progreso."
Sala's last post on Instagram was a picture on Monday with Nantes players alongside a message which translates as "the last goodbye."
The striker was in Cardiff last week to finalise the transfer, which was awaiting international clearance. The Premier League did not respond to questions about whether the transfer had been completed.
"I can't wait to start training, meet my new teammates and get down to work," Sala said in a video posted on the club's website.
A powerful and direct player, Sala equaled his career-best total of 12 goals – achieved in the past two seasons with Nantes – in 19 league games this season. He is fifth-highest scorer in the French Ligue 1, one behind Paris Saint-Germain forward Neymar, who is the world's most expensive player.
"He was a polite, nice and adorable player who was loved by everybody," Nantes president Waldemar Kita told French TV channel CNews.
Cardiff's executive director Ken Choo said they were all "very shocked" at the news.
"We continue to pray for positive news," he said.
Cardiff called off Tuesday's training session, and stunned supporters laid flowers and scarves outside the club's stadium.
"The excitement of a new signing arriving at your club can bring so much happiness. That's how we felt about Sala," said Cardiff fan Josh Thomas, 24.
"He was the one who was going to turn our fortunes around and score the goals that would keep us up. He was going to be the one adored by the fans, including me. But within a few hours so much has changed."
Argentine football legend Diego Maradona said he was hoping the plane had simply gone astray.
"I hope it went to the wrong airport and we find him alive, that's all," he said in an audio message.
Real Madrid coach Santiago Solari, also Argentine, said: "We feel great sadness of course and we send all the strength and love in the world to the relatives, close friends, and people that know him."
"And of course we never lose hope until the end," he said.
With his former teammates in shock, Nantes have postponed their French Cup tie against third-tier side Entente Sannois Saint-Gratien on Wednesday until Sunday.
Hundreds of fans gathered for a vigil in the western French city on Tuesday, placing flowers, scarves and flags on a fountain and chanting the striker's name.
"I still have hope, he is a fighter," Nantes president Waldemar Kita tweeted.