11.   Police believe the explosions were caused by parcel bombs.

12.   A parcel bomb exploded in a private passenger bus in this capital city on Friday, injuring at least four people, police said.

13.   A parcel bomb exploded Thursday in the office of the British Broadcasting Corp. and Reuters news agency, injuring three people, the two news companies said.

14.   A parcel bomb exploded at City Hall Tuesday evening, hours after police seized the head of a doomsday cult accused in the Tokyo subway gassing.

15.   A parcel bomb exploded Thursday in the office of the British Broadcasting Corp. and Reuters news agency, wounding three people, the two news companies said.

16.   A parcel bomb explodes at City Hall Tuesday evening, hours after police seize the head of a doomsday cult.

17.   A parcel bomb went off Wednesday in the Milan offices of a television station owned by Premier Silvio Berlusconi, slightly injuring the secretary who opened it.

18.   A parcel bomb blew up in the hands of a Genoa policeman on Monday, seriously injuring him.

19.   A parcel bomb exploded while passengers were boarding a private bus on Friday, injuring at least four people, police said.

20.   A small parcel bomb exploded in front of a busy vegetable market in downtown Kampala Wednesday, killing one person and injuring six others, police said.