Dhaka, April 10 -- It has been alleged that two trawlers used to transport workers across a river in Savar have been hijacked after a businessman refused to pay extortion money.

The incident occurred at Milon Ghat on the Bangshi River in the municipality's Katlapur late on Wednesday afternoon, according to Jewel Mia, chief of Savar Police Station.

Dock Leaseholder Kamrul Islam has filed a case against several named suspects - Antur Khan, 26, Morshed Khan, 25, Mosharaf Khan, 28, Hridoy, 25, Rony Khan, 42 - and 10-12 other unnamed ones over the hijacking.

A video showing suspect Antur standing atop a trawler with a pistol in his hand has gone viral on social media.

Kamrul's son Hedayatullah said that garment workers used the trawlers to...