Islamic Preacher Md Afsanul Adnan popularly known as Abu Taw Haa Muhammad Adnan, and his three companions reportedly went missing since last Thursday, claimed his family members.
His family had made contact with him for the last time after their arrival in Dhaka's Gabtali area from Rangpur.
Adnan's mother Azeda Begum filed a general diary in this regard, said Abdur Rashid, Officer-in-Charge of Kotowali Police Station of Rangpur Metropolitan Police.
According to Azeda Begum, Adnan, 31, lives with his family in Rangpur city.
However, her son occasionally goes to different mosques in the country to give sermons on Friday besides teaching Arabic online.
Adnan left Rangpur for Dhaka in a rented car at around 4pm on Thursday to give a sermon at a mosque in Dhaka on Friday.
Adnan was accompanied by Abdul Muhith, Firoz and the driver Amir Uddin Fayez.
When his wife called Adnan at around 2.37am on Thursday, he said he was then at Gabtali, Dhaka.
His mobile phone battery was near empty then, since then, all of their phones including Adnan's one remained switched off.
The Darussalam police officials said that they got a verbal complaint about the incident and collected his last mobile phone call location.
Darussalam Police Station Officer-in-Charge Tofael Ahmed said, "We have examined CCTV footages [at Gabtali] but we found nothing so far."
Adnan's family further claimed that they were threatened to delete posts from social media platforms regarding the incident.
Counter Terrorism and Transnational Crime (CTTC) Unit of DMP (DB) said that they have no information about this incident.