1.   A second bomb has been discovered in south London.

2.   They were clearing up when the second bomb exploded.

3.   As a result, people who had gone to help casualties of the first blast became victims themselves when the second bomb detonated.

4.   As investigators, firefighters and reporters arrived, a second bomb went off, injuring six people.

5.   Authorities would not address the question of whether the second bomb was timed or may have been detonated remotely.

6.   A second bomb exploded at the American embassy in the Tanzanian capital of Dar es Salaam within minutes of the Nairobi attack.

7.   A second bomb exploded in an outhouse in a Humboldt National Forest campground in Lamoille Canyon, on the other side of the state, they said.

8.   A second bomb detonated an hour later, injuring seven people drawn to the scene.

9.   After patrons were evacuated from the club, investigators discover and detonate a second bomb that had been hung in shrubs overlooking the parking lot.

10.   After the second bomb was dropped, our division was sent to Kyushu to disarm the Imperial Marines, which were headquartered there.