Mumbai, Aug. 21 -- Pirates hijacked two commercial vessels carrying a total of 22 Indians in separate incidents off Yemen and Somalia, officials said Thursday. Six armed pirates hijacked the Eritrea-flagged oil tanker MT Sibu 1 in the Gulf of Aden, about 30 nautical miles off the Yemen coast. It was carrying 16 Indians among its 20 crew members. In the second incident, pirates seized the Cameroon-flagged cargo vessel MV Lutuf, which was carrying six Indians among its crew, off Somalia.P6...