21.   He paid tribute to a U.S. guard who spotted the suspicious fuel truck and began alerting people to evacuate.

22.   In Bahrain, cannons could be heard alerting people that Friday was the last fasting day.

23.   In Bahrain, cannons alerted people Friday that Ramadan had concluded.

24.   Smaller LEDs are commonly used for such things as the tiny red lights that alert people that their stereos are on.

25.   He also said he would mount a campaign to alert people on the border to the risk of taking in unregistered refugees.

26.   An official realised what was happening and alerted people inside who began streaming out.

27.   Authorities had been alerting the people about the cyclone.

28.   South Korea issued an ozone warning in metropolitan areas Sunday for a second consecutive day, alerting people to ever-worsening air pollution.