Published: Sep 06, 2013 3:47 PM EDT

NORTH NAPLES, Fla.- Naples Police arrested four suspects on drug charges this morning, after serving a search warrant at 528 14th St. Marijuana, oxycodone, crack cocaine and drug paraphernalia were seized from the residence.

Rodgers Robinson, 59; George Williams, 40; Derek Layton, 48; and Marvale Campbell, 63, were all arrested on various possession and intent to sell charges.

The search was part of an ongoing narcotics investigation in the River Park neighborhood. Additional arrests are still pending.