Analyze the sentiment expressed in the tweet. Is it positive, negative, or neutral? Explain the sentiment in relation to the stock mentioned.
TWEET: "RT @Reuters: MORE: Saudi Arabia says investigations are still under way, 18 Saudi nationals have been arrested so far https://t.co/yYQkpo5H…

" STOCK: Reuters DATE: 19/10/2018
Sentiment: (Provide sentiment here)
Explanation: The tweet sentiment is related to the stock mentioned, and it's important to interpret the context. The LSTM polarity score is -1 and the TextBlob polarity score is 0.3.