Damaged Shell icebreaker, key to offshore drilling project, arrives in Oregon for repairs

Authorities say the Fennica, a vessel that could be used by Royal Dutch Shell PLC in its Arctic offshore drilling project, has arrived in Oregon for repairs.

Portland Police officials say the 380-foot icebreaker arrived at a Swan Island dry dock about 3 a.m. Saturday. The icebreaker is a key part of Shell's exploration and spill response plan.

The Fennica was damaged earlier this month in the Aleutian Islands when it struck an underwater obstruction, tearing a gash in its hull.

Environmental groups, which oppose arctic offshore drilling, want the government to reject permits sought by Shell to drill in the Chukchi Sea.

Local activists said heavy security around the Fennica in Portland prevented protesters from getting close to the ship.