A memorial run will be held in Lexington on Saturday in honor of those injured and killed in a terrorist attack during the Boston Marathon.
Walkers and runners are invited to meet at John's Run Walk Shop on South Ashland Avenue at 7 a.m. Saturday to take part, said Keith Cunningham, an avid runner and organizer of the event.
Following a memorial service, participants will be directed along several routes. Routes will be 3, 4 and 6 miles long, and there will be a "long route" of up to 20 miles, he said.
Cunningham said he initially expected about 30 to 40 participants, but that number has grown to more than 200 as word has spread among running clubs and on social media.
The event also is being organized by Ernie Peel of the John's Striders beginner's running group and Bob Baney of 3 Way Racing company.
None of the 12 Lexington residents who ran in the Boston Marathon were injured when two bombs were detonated at the finish line about 2:50 p.m. Monday. Cunningham said he did not know whether any of those runners planned to take part in the memorial run Saturday.