Regions of Western Australia went into a lockdown on Sunday after one person in the area tested positive for the coronavirus.

Western Australia’s premier, Mark McGowan, shuttered a number of businesses, entertainment services, schools, and restaurants for roughly 2 million people within the Perth metropolitan area and two other regions, Peel and South West. The measures, which will last for five days, follow the positive test results of a security guard in his 20s who may have been exposed to either the U.K. COVID-19 variant or the South African strain, both of which are said to spread at a higher rate.