1.   He reported hearing a second explosion.

2.   It was the second big explosion there in a year.

3.   Police evacuated the immediate area and began a meticulous search for other bombs after the second explosion.

4.   A second explosion blotted out a length of hedge.

5.   A car that had been moved from the rear of the building after the first blast takes the brunt of the second explosion, which injured seven people.

6.   A second explosion, apparently a bomb hidden in a purse, killed two shopkeepers and injured two others in the Black Sea port of Rostov-on-Don.

7.   A second explosion nearby later wounded eight people, one critically.

8.   A second explosion destroyed a police vehicle rushing to the scene to help.

9.   But the second explosion was the equivalent of one to two tons of TNT, he added.

10.   Can Sergei Zubov put together a second consecutive scoring explosion?