BETTIAH, Jan. 1 -- Four persons, including three Bangladeshi nationals, were arrested by security forces at Raxaul in East Champaran district for allegedly crossing into India illegally from the Nepal side, officials said on Thursday.

An Indian youth was also taken into custody for allegedly facilitating their unauthorised entry.

The matter came to light after the Sashastra Seema Bal (SSB) handed over all four accused to Haraiya police on Wednesday evening for further investigation. "We have informed the central agencies. However, the Intelligence Bureau (IB) has already questioned them," said Kisan Kumar Paswan, station house officer (SHO) of Haraiya police station.

According to officials, the arrests were made after SSB personnel int...