NISKAYUNA, N.Y. -- Niskayuna Police arrested four teens who they say were involved in a stabbing earlier this week.

Eighteen-year-olds Bruce VanEpps of Colonie, Joseph Tomaso and Brandon Mischitelli both of Niskayuna, are charged with one count of assault.

Edward Rosenberg, 18, of Colonie, faces three assault counts.

Police say all four were involved in an incident at the Becker Street neighborhood park this past Sunday, August 12th. Three people were stabbed during an altercation there. Their injuries were not life threatening.

Police say the people involved all knew each other and this was not a random attack.

All four of the teens arrested are due back in court later this month.