1.   Such arguments naturally alerted the authorities to the possible threat posed by such an organization.

2.   Several neighbors alerted the authorities when they noticed strangers acting suspiciously.

3.   Mr Carneiro said police had erected roadblocks and alerted authorities on the nearby Bolivian border.

4.   And the inspector general found that the INS is not systematically collecting and reporting missing passport information so authorities can be alerted when someone uses a stolen passport.

5.   Angeli is furious at Zona Photographic Laboratories for secretly alerting authorities to her work, and at Cambridge police for what she describes as heavy-handed treatment during her arrest.

6.   Authorities were alerted and immediately began calling people.

7.   Authorities were alerted to the man, a Palestinian reportedly from the Jenin area, by an Israeli bystander who said he looked suspicious.

8.   Authorities were first alerted to a bomb threat that was found in a bathroom at a Jack in the Box near the airport.

9.   A passing motorist alerted authorities, but it was too late to save the building.

10.   A regular Intel systems administrator had noticed someone using Crack, and had alerted the authorities.