Two ship seizures in the Indian Ocean in recent days appear to indicate that pirates have broadened their focus beyond the heavily patrolled Gulf of Aden. Pirates hijacked two chemical tankers: the Bahamian-flagged, Norwegian-owned vessel Bowasir March 25 and the Panamanian-flagged, Greek-owned Nipayia March 26, a Navy spokesman confirmed. Bowasir and its 23-member crew were operating more than 380 nautical miles southeast of Kismayo, Somalia. Nipayia and its 19 merchant mariners were pirated 490 nautical miles east of Mogadishu, the official said.