A McCook man is in custody after police say he sexually assaulted two 15-year-old girls.

According to a news release from the Lincoln Police Department, 30-year-old Michael Brunswick has been charged with 1st degree sexual assault of a child and electronic child enticement.

Lincoln Police say Brunswick began communicating with the girls, who are from Lincoln, through the dating website meetme.com in 2013.

Police say that summer, Brunswick met with the girls at Ballard Park in Lincoln, where the girls allegedly performed sexual acts on Brunswick in exchange for cigarettes.

One of the girls eventually told her mother, who contacted police.

Nebraska law prohibits anyone over the age of 19 from having sex with anyone under the age of 16.