11.   Kansas City police Sgt. Robert Schweitzer would say only that arson was suspected.

12.   Officials do not know what caused the blaze, though they do not suspect arson.

13.   The cause remains under investigation, but arson is not suspected, Rodriguez said.

14.   Though its explosive speed initially led investigators to suspect arson, later Friday they said evidence pointed to electrical short-circuits in the lighting or sound systems.

15.   Police suspected arson by a group of labor activists who were staging a sit-in protest against a dairy company housed in the Yoodong Building.

16.   Police suspected arson when they found the school fence was cut at two places and some goods believed to have been taken from the school scattered on the field.

17.   Police suspected arson.

18.   Previous reports said arson was suspected.

19.   Police initially said they suspected arson but later said the fire could also have been started by negligence.

20.   Police said they suspected arson.