Kenyans dominate Boston Marathon

Geoffrey Kirui won the men's race and Edna Kiplagat the women's as Kenyan athletes once again dominated proceedings at the annual Boston Marathon.

Kirui crossed the line in two hours, nine minutes and 37 seconds after fending off a spirited challenge from American Galen Rupp during the final stretch down Boylston Street.

Kiplagat, a 38-year-old mother of two, showed no signs of slowing down as she won in a time of 2:21:52, finishing almost a full minute ahead of Bahrain's Rose Chelimo.

Incredibly, Kiplagat had to stop close to the finish line and run in the opposite direction after she realised she had accidentally grabbed a rival's water bottle from an aid station.

She returned the bottle and still finished first with plenty of time to spare. Her children were at the finish line to welcome her home.

"When I was running, my body was feeling good," said Kiplagat. "I tried to push more, hard and I saw my [rivals] were not picking up the pace."

American Jordan Hasay, making her competitive marathon debut, finished third for the women, while Japan's Suguru Osako was third in the men's race.

Security at the race remained very tight following 2013's deadly terrorist bombing on Boylston Street. 

Spectators were not deterred, however, as thousands packed the streets for the city's largest sporting event.

The race takes place on Patriots Day, a public holiday which commemorates the start of the American Revolution.