Rapid Action Battalion arrested four persons at the city's Elephant Road yesterday for possessing tablets of Yaba, a stimulating drug.

A police officer was also arrested while offering bribe to the Rab personnel to release the four arrestees.

The arrestees are SubInspector (SI) Ruhul Amin, recently released from Hazaribagh Police Station and transferred to Khulna Range; Mohammad Khaled Ahsan, 22, his female friend Nawrin Islam Rina, 20, residents of Mohammadpur; Abdul Ahad Ali, 19, resident of Pallabi, and Mohammad Masud Alam of fatrabari.

On information, a patrol team of Rab-2 found Khaled, Rina, Ahad and Masud with 62 Yaba tablets in a private car near Eastern Mallika Shopping Centre at Elephant Road around 8:00am, said a high-ranking Rab official.

Following the arrest, SI Ruhul Amin reached the spot in a private car and tried to bribe the Rab personnel with a check of Tk 1 lakh of Brae Bank. On refusal, the SI was locked into a quarrel with the Rab team and at one stage he pointed his service gun at the Rab personnel. Then with the help of locals, the Rab team arrested the SI and seized his gun.

Rab also seized the Yaba tablets and two private cars.

Khaled is a BBA student in Bangkok and returned to the country on Eid vacation and Rina used to live in America, Rab sources said.

Enamul Haque Enam, o fficer-in - charge of Hazaribagh Police Station, said Ruhul was involved in irregularities and departmental proceeding against him was going on. Following release from the police station, he got admitted to Rajarbagh Police Lines Hospital, the OC added.

Rab sources said Ruhul was involved in drug business.

Rab will handover the arrestees to Newmarket Police Station, they said.