MARATONA

With thousands of runners still on the course at the Boston Marathon, two explosions rocked Boylston Street just yards from the finish line. The blasts ripped through crowded spectator viewing stands. The death toll as we publish stands at three and is expected to rise, with over 140 others injured and transported to local hospitals. No arrests have been made. Please follow Boston.com for further updates. (WARNING: Some images are graphic.) (32 photos total)

The scene at the finish line of the 117th Boston Marathon when one of the two bombs exploded. (David L. Ryan/Globe Staff)

2

A second explosion goes off (rear) as Bill Iffrig was blown to the ground by the first explosion near the finish line of the Boston Marathon.(John Tlumacki/Globe Staff) #

3

Victims of the explosion lay on the ground in shock at the scene of the explosion. (John Tlumacki/Globe Staff)#

4

Police officers run with their guns drawn as they hear the second explosion down the street. (John Tlumacki/Globe Staff)#

5

An injured person is wheeled across the finish line of the Boston Marathon. (John Tlumacki/Globe Staff)#

6

Destruction and victims at the site of the explosion. Barricades hindered the help from getting to the injured. (John Tlumacki/Globe Staff)#

7

Two officials run away from the first explosion. (John Tlumacki/Globe Staff)#

8

People leave the bleachers at the finish line after the explosion. ( David L Ryan/Globe Staff )#

9

An injured woman is tended to at the scene of the explosion on Boylston Street. (John Tlumacki/Globe Staff)#

10

A woman looks on as runners pass near Kenmore Square after two bombs exploded during the 117th Boston Marathon. ( Alex Trautwig/Getty Images) #

11

Runners who had not finished the race were stopped before the Massachusetts Avenue overpass on Commonwealth Avenue. (Yoon S. Byun/Globe Staff) #

12

A man comforts a victim on the sidewalk at the scene of the first explosion. (John Tlumacki/Globe Staff)#

13

A victim is moved out of the scene in a wheelchair. ( David L. Ryan/Globe Staff) #

14

A Boston Marathon runner, center, is reunited with loved ones near Copley Square following the explosion. (Winslow Townson/Associated Press) #

15

A child is comforted after explosions went off at the Boston Marathon. (Jessica Rinaldi/Reuters)#

16

A victim of the explosion is helped onto a stretcher. ( David L. Ryan/Globe Staff)#

17

A victim is helped on the sidewalk of Boylston Street. (John Tlumacki/Globe Staff)#

18

Bomb victims are pushed to safety. (David L. Ryan/Globe Staff)#

19

A man walks the scene of the explosions at the Boston Marathon. (The Daily Free Press, Kenshin Okubo/The Daily Free Press via Associated Press) #

20

A Boston Marathon runner is comforted in the aftermath of two blasts. (Elise Amendola/Associated Press) #

21

People tend to an injured woman. (Bill Greene/Globe Staff) #

22

A runner embraces another woman on the Boston Marathon route near Kenmore Square after two bombs exploded. (Alex Trautwig/Getty Images)#

23

Katherine Swierk (left) is reunited with her aunt Terry Days (center) and friend Jocelyn Cacio outside Copley Square in Boston after explosions during the Boston Marathon. (John Blanding/Globe Staff)#

24

Spectators were evacuated from the scene. (Bill Greene/Globe Staff)#

25

People on Boylston Street check their devices for news of the explosions at the Boston Marathon. (Jim Davis/Globe Staff)#

26

Justine Franco of Montpelier, Vt., holds up a sign near Copley Square in Boston looking for her missing friend, April, who was running in her first Boston Marathon. (Winslow Townson/Associated Press) #

27

Women desperate to hear from loved ones can't enter the scene at the marathon. (Bill Greene/Globe Staff) #

28

A couple run from the scene of the explosions with a stroller. (Bill Greene/Globe Staff)#

29

A frightened child is taken from the scene of the second explosion. (Bill Hoenk for the Boston Globe) #

30

A man is helped with his bleeding leg at the scene of the first explosion.(John Tlumacki/Globe Staff) #

31

President Barack Obama leaves the podium after speaking at the White House following the explosions at the Boston Marathon. (Manuel Balce Ceneta/Associated Press)#

32

A woman prays at the scene of the explosion at the finish line of the Boston Marathon. (John Tlumacki/Globe Staff) #