alert

At the same time, it triggers an alert to a private rapid-response call centre - professional response companies are common in South Africa - where a trained operator calls the user.

Police Department is on heightened alert, officials said, and will have officers stationed along the parade route and near Dodger Stadium.

Gutberlet recalled friends alerting him to an uptick in Chinese imitations of Kaweco’s pocket-size “Sport” pens for a 10th of the price.

The system tracks movements, stores data, and sends alerts to researchers' phones in real time.

Police received calls from passengers on board the train at around 19:40, alerting them to the attack.