Dhaka, Oct. 30 -- The Police Bureau of Investigation (PBI) has taken into custody a junior friend of former Bangladesh Air Force Flight Lieutenant KM Tahsif Souri for questioning over his death.

The man, Ahmed Shahriar Reza Dwip, reportedly spent around six hours with Tahsif before the former air force officer went missing, a senior PBI officer said on Friday.

PBI investigators are questioning Dwip to verify information about Tahsif's movements and to look for possible clues to the circumstances surrounding his death, the officer said.

Tahsif's motorcycle was also recovered from Tongi in Gazipur, although PBI officials were still verifying whether it belonged to him.

The PBI took Dwip, son of Selim Reza, into custody from a Mohammadpu...