<p>A gunman opened fire in a Moscow city customer services facility, killing two people Tuesday and wounding three others, city authorities said.</p>.<p>Moscow Mayor Sergei Sobyanin said on Twitter that a suspect was detained. Sobyanin didn't offer any details about the assailant or his possible motive, saying only that the incident took place in the southeast of the city.</p>.<p>“Doctors are doing all they can to help those wounded,” the mayor said.</p>.<p>State news agency <em>Tass </em>reported, citing an unidentified law enforcement source, that the man drew out a gun and started firing shots after an argument with a security guard who asked him to put on a face mask, which is mandatory in such facilities.</p>.<p>Tass also quoted witnesses of the incident as saying that a girl aged 10 or 11 was among the people wounded. </p>.<p><strong>Watch latest videos by DH here:</strong></p>
<p>A gunman opened fire in a Moscow city customer services facility, killing two people Tuesday and wounding three others, city authorities said.</p>.<p>Moscow Mayor Sergei Sobyanin said on Twitter that a suspect was detained. Sobyanin didn't offer any details about the assailant or his possible motive, saying only that the incident took place in the southeast of the city.</p>.<p>“Doctors are doing all they can to help those wounded,” the mayor said.</p>.<p>State news agency <em>Tass </em>reported, citing an unidentified law enforcement source, that the man drew out a gun and started firing shots after an argument with a security guard who asked him to put on a face mask, which is mandatory in such facilities.</p>.<p>Tass also quoted witnesses of the incident as saying that a girl aged 10 or 11 was among the people wounded. </p>.<p><strong>Watch latest videos by DH here:</strong></p>