TAIPEI, Taiwan — Taiwan reported 29 new domestically transmitted cases of COVID-19 Friday. Of the cases reported, seven cases were of an unknown source. The rest of the cases were linked to clusters discovered earlier in the week.

Health officials are setting up four rapid testing locations in Taipei for those who want to get tested, Taiwan’s Health Minister Chen Shih-chung said at a daily press briefing.

The latest outbreak comes after pilots with the island’s China Airlines tested positive for COVID-19. Health officials said Wednesday that many of the cases reported so far had the exact same viral strain as as the infected cases in the pilots cluster.

The island raised its emergency preparedness earlier this week, banning large indoor and outdoor gatherings. Taiwan had virtually eradicated domestic transmission of the coronavirus through strict mask wearing, case tracing, travel restrictions and quarantine measures.