於 11 月 8 日（星期五）晚上，荃灣站內的不同設施遭人破壞，甚至縱火。車站職員於無法確保乘客安全下，於 2155 時立刻啟動疏散程序，並由車務控制中心安排將列車改為於大窩口站暫停服務，避免車上乘客誤入險境
但由於荃灣站附近的街道同樣有不安全的情況，少量乘客及商戶未能及時離開，而需要繼續於車站內暫避，期間有人將汽油彈投擲到車站大堂
此舉嚴重威脅站內乘客及商戶的安危，車站職員遂於緊急服務人員到場前，用滅火筒將火焰撲熄，因而產生煙霧，煙霧亦於短時間內散去
由於不安全的情況持續，滯留於車站內的少量乘客及商戶，最終由車務控制中心安排的空車接載離開
On 8/Nov (Fri) night, various facilities in Tsuen Wan Station were vandalised and set on fire
As the station staff could no longer ensure the safety of passengers, the station was immediately evacuated at 2155 hours. Meanwhile, the Operations Control Centre had arranged all Tsuen Wan Line services to terminate at Tai Wo Hau instead to help the passengers on board to avoid the place of danger
However, a small number of passengers and merchants did not manage to leave in time as the surroundings of the station also became unsafe and they were allowed to take shelter inside the station. During this time, a petrol bomb had been thrown into the station concourse
This had posted a serious threat to those passengers and merchants, therefore station staff had used fire extinguishers to put out the fire before emergency services arrived, hence the dense smoke appeared. The smoke cleared within a short period of time
As the unsafe situation persisted, the stranded passengers and merchants were picked up by an empty train dispatched by the Operations Control Centre
