A case has been filed against the owner and staff of Aladin’s Park in Dhamrai upazila of Savar in connection with the attack on students who went there for a picnic.

Abdul Hye Majumdar, assistant professor of Banophool Adibashi Green Heart College in Mirpur, filed the case against four identified and 25-30 unidentified people on Thursday.

Alauddin, owner of the park; Rifat Mahmud, son of the owner; manager Rony; and another staff member Abul Kalam Azad were accused in the case, said Manirul Islam, officer-in-charge of Dhamrai Police Station.

Police in a drive arrested four people from the adjacent villages in the upazila on Thursday. They are: Rakib, Antar, Md Sumon and Rana, ride operator of the park.

According to the case statement, a mobile phone was missing from in front of the office room of the park on Wednesday afternoon.

A heated argument transpired between the students and the staff of the park led by Rifat.

At one stage, Rifat, along with his staff, equipped with weapons, attacked the students, leaving 30 people including students and teachers injured.

They also vandalised eight buses, used for the picnic, and snatched away 20-25 mobile phones from the students.

The students also vandalised the glass of a building inside the park.

Some 600 students from the Banophool Adibashi Green Heart College, Mirpur went to the park for a picnic on Wednesday and the park authorities provided lockers to keep the valuables including mobile phone of the students.

On information, police rushed to the spot and brought the situation under control.

Meanwhile, Alauddin, owner of the park, alleged that the estimated loss caused by the vandalism is over Tk 10 lakh.