Olympic women's marathon champion Tiki Gelana said it has been a struggle to force the shocking images of the Boston bombings from her mind ahead of this weekend's London Marathon.
The Ethiopian told Press Association Sport: "It is not so easy [to put Boston out of your mind].
"As a human being you feel sorry for the people affected because of what happened. You think about it now and then."
"But I am here to run, I am an athlete," she continued. "London is a big marathon to win. Even with what happened in Boston, you come here to win. To win in London would mean a lot."
More top news
Toys R Us has scrapped its four collectible dolls based on the characters of the hit TV series Breaking Bad after a campaign by a US mother
Late actress Lynda Bellingham shared how she planned to spend Christmas during a moving final interview on Loose Women to be broadcast later
Around 760 out of the 4,200 foreign offenders living freely in the UK have disappeared from sight, according to a leading watchdog.