A Homeland Security spokesperson said that half of the offenders had prior criminal convictions for crimes ranging from grand larceny to illegal gun possession. About a third of the arrests occurred in Rochester and surrounding towns.

Immigration and Customs Enforcement agents arrested 46 foreign nationals in Western and upstate New York.

The arrests came during a five-day operation targeting at-large criminal aliens and immigration violators. A Homeland Security spokesperson said that half of the offenders had prior criminal convictions for crimes ranging from grand larceny to illegal gun possession.

About a third of the arrests occurred in Rochester and surrounding towns.