Binance executive Tigran Gambaryan, who has been detained in Nigeria since February, submitted a new bail request on Monday citing medical reasons, though the country’s economic crimes agency opposed the plea. Gambaryan, a U.S. citizen, along with Binance and the exchange’s Africa regional manager, Nadeem Anjarwalla, face charges of laundering over $35 million. Binance is also separately accused of tax evasion.

Gambaryan’s lawyer, Mark Mordi, told the High Court in Abuja that the bail application was renewed due to his client’s worsening health while in custody. Gambaryan, who was previously denied bail in May, suffers from a herniated disc causing neck and back pain, as well as recurring malaria and pneumonia. He appeared in court using crutches and claimed that prison authorities refused him a wheelchair. However, a lawyer for the Economic and Financial Crimes Commission argued that Gambaryan’s condition, a herniated disc, has been present for over a decade. The case will continue on Wednesday.