Police have identified those killed in a crash near the Franklin Mills Mall on Wednesday night as 17-year-old Christopher Alcalde, of the Summerdale section of Northeast Philadelphia; Anthony Christensen, 20, of Bensalem; and Lucrecia Santamaria, 15, who attended Bensalem High School.

Christensen was driving the car that crashed into several concrete barriers around 8 p.m. The accident is under investigation, but police believe excessive speed was a factor.

Alcalde and Santamaria had photographs of themselves together on their Facebook pages, and Santamaria's profile picture showed Alcalde with his arm around her. Santamaria worked at the mall and was friends with Christensen's sister.

Alcalde played tennis for Northeast High School and planned on attending Temple University, according to his Facebook page.

Christensen worked at a tire business in Bristol. He was driving the maroon Pontiac Grand Am north on Franklin Mills Circle, near the mall, when he apparently lost control and struck the barriers.

The car flipped and landed on its hood, a police spokeswoman said. The impact was so forceful that several of the tires were ripped from the wheels, police said, and the car battery came out of the compartment.

Christensen and Alcalde, who were not wearing seat belts, were thrown from the car and pronounced dead on the scene. Santamaria, who was wearing a seat belt, was alive when responders arrived and was cut from the wreck, but died shortly afterward.

Contact staff writer Allison Steele at 215-854-2641 or asteele@phillynews.com.