Afrobeats artist Castro went missing along with friend Janet Bandu in July.
They disappeared while using jet skis on holiday with former Sunderland striker Gyan’s family in the Ghanaian coastal town of Ada.
“I’m feeling it and it is a difficult situation right now. He was my friend, you know. I don’t know if he is there or no and we are still waiting,” said Gyan after his club Al Ain crashed out of the Asian Champions League.“It is very, very depressing for me and my family. But life goes on.”
Last month, Gyan’s brother Baffour Gyan, was alleged to have been part of a gang, which attacked a journalist who had asked the player about the rumours.
Baffour’s assault charges were however dropped later.