Former Brighton midfielder Enock Mwepu is in hospital in Zambia after falling unwell, his former club says.
The 25-year-old was forced to retire from football in October because of a hereditary heart condition.
Reports in his native Zambia said he had suffered a suspected heart attack on Sunday while driving and was seen to fall after parking his car.
"Enock was taken unwell in Zambia and is currently undergoing precautionary checks," a Brighton spokesperson said.
"Our medical team is in communication with the hospital to assist if required.
"The club would like to thank the many well-wishers for their messages and support."