Task: Determine the emotional state reflected in the tweet, categorizing it as 'neutral or no emotion' or as one or more of the specific emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best characterize the emotional tone.
Tweet: Centre puts entire security apparatus on highest alert following #terror attack on #Amarnath pilgrims.
This tweet contains emotions: 