NEW YORK (AP) – The government is reporting that three babies have been born in the U.S. with birth defects caused by the Zika virus.

Birth defects from Zika were also seen in three other pregnancies that ended.

Thursday’s report from the Centers for Disease Control and Prevention is the first accounting of pregnancy outcomes in the U.S. that involve an infection with mosquito-borne virus.

The CDC says 234 pregnant women in the United States – residents and visitors – have been diagnosed with Zika. Most of the pregnancies are ongoing.

All the cases are connected to travel to areas with Zika outbreaks, mostly in Latin America and the Caribbean. There has been no spread by mosquitoes of the Zika virus in the U.S.