Task: Categorize the tweet's emotional expression, classifying it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that reflect the tweeter's state of mind.
Tweet: #Malaysian police arrest 4 people for suspected links to #terrorism including three #foreigners\n\n#Malaysia
This tweet contains emotions: 
fear, sadness