"Sad to inform you that the court denied Senator Leila's bail application," Filibon Tacardon, her legal counsel, told reporters.
De Lima, 63, had requested bail in connection with a case in which she has been accused of conspiring to illegally trade narcotics in prison.
She has denied all charges and had sought bail on account of her age and "several health issues".
The court said her request was "untenable" and her culpability or innocence would be decided on the basis of evidence presented.
A court in 2021 dismissed a drug case against her while another court in May acquitted her of a charge that she received drug money from prison inmates.
Persons:
De Lima, De, Leila de Lima, Rodrigo Duterte's, Leila's, Duterte, Neil Jerome Morales, Enrico Dela Cruz, Kanupriya Kapoor, Robert Birsel
Organizations:
Thomson
Locations:
De Lima, MANILA