Neil Lewis from Cardiff was among the Welsh people who ran the Boston Marathon.
His wife and 20-week-old baby daughter were at the finishing line just an hour before the explosions, and he told us about his relief they didn't go back out to watch other people finish.
He was speaking to us by phone from Boston, describing the city as "eerily quiet", the morning after the explosions.
At least three people died in two blasts near the marathon finishing line.
You may find some of the images in this video upsetting.
More top news
Occasional blustery showers overnight and brisk north-westerly winds. Patchy rain will continue during the day tomorrow.
Dame Shirley Bassey releases her first festive recording "The Christmas Song" with Brit-Award winning harmonisers Blake.
Private Gavin Williams was initially treated for a psychiatric episode rather than heatstroke an inquest hears.