1.   A major rescue operation was launched yesterday after two divers were reported missing.

2.   After searching two days for the body, authorities called off the rescue operation.

3.   Fortunately a small group of folk banded together determined to save the bird and the rescue operation began.

4.   He merely flew into the airport, where the military rescue operation was being organized.

5.   Indeed, the entire rescue operation seems to have proceeded at a glacial pace.

6.   Rescue operations were being hampered by severe winter weather and the death toll was expected to soar.