Boston trolley collision injures more than 20 people

More than 20 people were taken to medical facilities following a trolley collision in Boston on Friday, authorities said.

No one was being treated for non-life-threatening injuries, the Boston Fire Department tweeted.

The department said 22 people were injured, and Boston Emergency Medical Services put the number at 23.

Two Green Line trains colled near Boston University early Friday evening, The Massachusetts Bay Transportation Authority said.