Since the beginning of this year, there have been cases of foreigners being sexually harassed while walking around West Lake in Quang An ward, Tay Ho district of Hanoi. Several incidents immediately attracted the attention and sympathy of a large number of foreigners living in Hanoi, as well as from the locals. The incident made foreigners afraid, haunted, and they didn't dare to go out at night. The "Hanoi Nightwatch" Facebook page was immediately set up to share information about cases of harassment and the need to improve self-defense measures. Faced with this situation, the Hanoi government immediately stepped in and took drastic measures. Tay Ho district police said that they had searched, summoned, and arrested three young people involved. Tay Ho District plans to install surveillance cameras around West Lake. They also mobilize forces to propagate and distribute leaflets in many languages to remind foreigners to take the initiative to ensure safety./.