Rapid Action Battalion (Rab) arrested the prime accused of shooting an eight-month pregnant mother in Magura during a Jubo League factional clash from Kalyanpur in Dhaka this afternoon.

The arrestee, Shumon Sen, 30, is the No. 1 accused in the case, the commanding officer of Rab 4 told The Daily Star.

Meanwhile, police arrested another accused in the case, Nazrul Islam, 30, after raiding a Dhaka-bound bus in Shreepur upazila of Magura around 6:30pm, said Imaul Haque, officer-in-charge of detective branch (DB) of police in Magura.

"The arrestee has been named in the case filed over the incident," Imaul, also the investigative officer of the case, told our Magura correspondent.

Miraculously, the baby survived after a two-hour caesarean operation on her mother at Magura General Hospital Thursday night. The 35-year-old mother, Nazma Khatun, survived too.

The newborn received bullet injuries when her eight-month pregnant mother was shot in the abdomen during an attack, which left one killed and another person injured.

Police so far arrested four people in this connection.