YANGON, Myanmar (AP) — Divers attached to safety ropes have plunged into waters south of Myanmar’s old capital as part of renewed efforts to retrieve a bronze bell that has been lying for centuries at the confluence of three rivers.

The 270-ton bell, believed to be one of the largest ever cast, was made on the order of King Dhammazedi in 1476 and donated to the revered Shwedagon pagoda. In the early 1600s, it was stolen by Portuguese despot Philip de Brito, but his rickety vessel sank where the Yangon and Bago rivers meet the Pazundaung creek.