Police say several suspects in the Friday stabbing of a 19-year-old Provo man have strong ties to local gangs.

Provo officers have arrested 13 people in connection with the 11:30 p.m. attack on Heny Andre Rivera, who was stabbed in the back five times behind the Colony Inn, 1380 S. University Ave.Provo police Capt. Keith Teuscher, who declined to offer a suspected motive for the attack, said Rivera was ambushed by the group as he stepped out of his vehicle. He reportedly was at the scene to meet with some women friends.

Rivera broke away and ran to 500 W. 1200 South where he solicited help from a homeowner who called for medical assistance. He was taken by ambulance to Utah Valley Regional Medical Center. He was listed in satisfactory condition Tuesday morning.

Six adult men and an 18-year-old woman from Provo, Spanish Fork, Orem and Pleasant Grove were arrested Monday for investigation on a variety of allegations, including attempted homicide and aggravated assault.

Four juveniles were taken into custody and referred to Juvenile Court or Youth Corrections.

Six of the adult suspects were booked into the Utah County Jail Saturday or Sunday and appeared in 4th District Court for bail hearings Monday. A seventh suspect was booked Monday and was scheduled to appear Tuesday before 4th District Judge Ray M. Harding Sr. for a bail hearing.

Dan F. Halverstadt, 19, of Pleasant Grove, was booked for investigation of aggravated assault. Bail was set at $5,000 cash or bond. Bail was set at $50,000 cash for Durin A. Wellesley, 19, of Pleasant Grove, who was booked for investigation of attempted homicide.

Destry C. Cobbley, 21, of Lindon, was booked for investigation of aggravated assault, and bail was set at $10,000 cash or bond. Jayson L. Young, 21, of Vernal, was booked for investigation of attempted homicide, and bail was set at $50,000.

Jacquelyn L. Bingham, 18, of Spanish Fork, was booked for investigation of aggravated assault, and bail was set at $10,000 cash. Mark J. Robinson, 22, bailed out of jail Monday. Brad C. Norton, 18, was booked Monday for investigation of attempted homicide and evidence tampering. He was scheduled to appear in court Tuesday.

Another suspect was taken into custody by police Monday afternoon and is still being interviewed by detectives. Police believe more than one person participated in the actual attack. Teuscher said the last two taken into custody will be charged this week with either attempted homicide or aggravated assault.

"They are main players," he said.

Teuscher confirmed that several of the suspects have ties to local gangs but would not say which gangs may be involved. Provo detectives and members of the Utah County Major Crimes Task Force are collaborating on the case.