Three people, including Hefazat leader Khaled Saifullah, have been held
Three more cases have been filed over violence following the confinement of Hefazat-e-Islam leader Mamunul Haque with a woman at a resort in Narayanganj.
Mamunul, who was made prime accused in two cases earlier, was sued in one of the fresh cases.
Meanwhile, detectives have apprehended three people, including the Islamist group leader Khaled Saifullah, in a case.
Of the new lawsuits, two were filed on Friday and another was lodged on Thursday with Sonargaon police station.
Officer-in-Charge (OC) Md Hafizur Rahman of the police station said with these, a total of six cases had been initiated so far.
"Police have arrested 15 people and drives are on to apprehend others," he added.
On Friday night, Sonargaon upazila unit Awami Jubo League President Rafiqul Islam Nannu filed a case against Mamunul as the prime accused along with 180 others, police said.
Some 120 named and 50 to 60 unnamed people were sued over vandalizing his house, car and business institutions, they said.
On the same day, Sonargaon upazila unit Jubo League Publicity Secretary Nasir Uddin lodged another case over the vandalizing of the office of the Awami League.
As many as 110 people were made accused along with 70 to 80 unnamed others in the case.
Earlier, Narayanganj district unit Chhatra League's former vice-president Shohag Rony's father Haji Shah Jamal filed a case on Thursday night on charges of attempts to murder his son and vandalism.
Some seven people along with 30 to 40 unnamed others have been sued in the case.
The Detective Branch of police in the district apprehended Khaled Saifullah and two Hefazat activists -- Kazi Samir and Ohid -- in the case on Friday night.
On April 3, people found and surrounded Hefazat Joint Secretary General Mamunul Haque staying with a woman, who he claimed to be his wife, at Royal Resort in Sonargaon.
Local administration and police officials went to the resort on hearing about the incident.
Police said at the time Mamunul was not being detained or arrested and that they were trying to find out what happened.
Later on, stick-wielding Hefazat supporters launched an attack on the resort. They vandalized it and snatched Mamunul from the police.
They also blocked the Dhaka-Chittagong highway, vandalized and torched vehicles, protesting what they said harassment of the Islamist leader. At the same time, Hefazat activists attacked the local Awami League office and vandalized it.
On April 4, Hefazat's Joint General Secretary of Dhaka Metropolitan 10 unit Foisal Mahmud along with other leaders filed a written complaint with Sonargaon police station, accusing Jubo League and Chhatra League men of attacking Mamunul.
On the same night, Hefazat activists vandalized the houses of Jubo League leader Rafiqul Islam and former Chhatra Leaguer leader Shohag Rony.
Shortly after the incident, the then OC of Sonargaon police station was withdrawn and an additional superintendent of police was transferred.
Hefazat supporters also beat up the Narayanganj correspondent of SA Television, Habibur Rahman, at his house in Sonargaon on April 5.
Sonargaon police then initiated two cases against Mamunul as the prime accused on charges of attacking police, vandalism, arson and obstruction of police duty while the journalist lodged another case over the assault on him and vandalism.
As many as 100 people have been sued along with 570 to 680 unnamed others in the three cases.