Mexico’s health authorities have announced that 22 cases of measles have been recorded in the country, most of them in the state of Chihuahua. These cases are linked to the ongoing measles outbreak in the neighboring United States, where two people have died and more than 250 have been infected.

According to the latest epidemiological report published on Thursday, as of March 9, Mexico had registered 416 suspected measles cases, of which 22 have been confirmed.

“There are two imported cases and 20 cases connected to them,” the report clarified.

Mexican authorities further explained that 18 cases were detected in the state of Chihuahua, which shares a border with Texas, USA.

More than 250 measles cases have been reported in the southwestern United States since the beginning of the year, primarily in Texas. Two people have died from the outbreak—the first measles-related deaths recorded in the U.S. in a decade.

More than half of the cases in Mexico involve children under the age of 9, with the oldest patient being 19 years old.

Last year, Mexico recorded seven cases of measles, all of which were imported cases.