Authorities have slapped travel ban on jailed former president Maumoon Abdul Gayoom's daughter Yumna Maumoon who is accused of being involved in the alleged plot to overthrow the government.
Police had earlier questioned Yumna, the latest family of member of the 80 year old Gayoom to be accused in the coup plot before she was ordered to be kept under house arrest until the end of the investigation.
Police have also asked Yuman for a sample of her handwriting which she has refused to provide without a court order.
The island nation has been embroiled in fresh political turmoil after the Supreme Court on February 1 ordered the immediate release of jailed political leaders including self-exiled former president Mohamed Nasheed.
President Abdulla Yameen Abdul Gayoom on February 5 had declared state of emergency after his last ditch attempt to convince the top court to revoke the order failed, purged the Supreme Court by arresting two judges and the remaining political leaders and ultimately had the order revoked.
Yameen's half-brother and former president Gayoom, chief justice Abdulla Saeed, top court judge Ali Hameed and four former government lawmakers which included Gayoom's son Faris Maumoon have been charged with terrorism for their involvement in the coup plot through the February 1 court order.
Yumna's husband also remains in custody and have been charged with terrorism over the plot.
Six of the coup suspects are set to stand trial together.