Prosecutors charged Friday a 21-year-old man, who is a resident of Marine Corps Base Hawaii, in the assault of a 3-month-old infant earlier this week.

Billy Groce was charged with first-degree assault and is being held at the police cellblock in lieu of $1 million bail.

Police said Groce allegedly caused serious bodily injury on the infant girl Tuesday and arrested him Wednesday on suspicion of first-degree assault.

Police would not provide further details.

A Police Department spokeswoman said Groce is not a Marine.