1.   Airport authorities are moving fast to improve security following a series of bomb threats.

2.   Following a series of provisional governments, the Dominican people elected Juan Bosch as their President.

3.   The killing follows a series of brutal attacks on tourists.

4.   The president resigned following a series of military defeats.

5.   Prison security has been severely criticized following a series of break-outs in recent months.

6.   The resignations followed a series of admissions by Salomon of a string of illegal trade and rigged bids for Treasury securities.

7.   The move followed a series of attacks on white teachers by a group of pro-PAC black youths calling themselves the Revolutionary Watchdogs.

8.   These latest reports follow a series of other cases of widespread dolphin deaths, including an epidemic under way in the Mediterranean.

9.   The arrest followed a series of raids on homes in the area.