Welsh runners who were taking part in the Boston Marathon have been talking about the bomb attack which claimed three lives and left more than 100 injured.
At least ten Welsh people were involved in the race with some of their families among the crowds.
They include one man from Cardiff who crossed the finishing line a minute before the first explosion.
You may find some of the images in Megan Boot's report distressing.
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Calm and quiet overnight with clear skies at times. Temperatures will fall, but we should escape the frost!