The number of people hurt in the Boston Marathon bombing has risen to 264, with officials confirming the city's hospitals faced a significant second wave from spectators and runners hurt in the April 15 blasts.
Many people waited a few days before seeking medical attention for complaints such as ringing in ears and minor shrapnel wounds, the Boston Public Health Commission said.
The increase added to the initial figure of 180 people said to have been injured in the aftermath of the twin explosions.
Three people were killed and at least 14 people lost all or part of a limb.
Among those terribly injured by the Boston marathon bombs was a dance instructor. Adrianne Haslet-Davis lost her foot in the explosion.
The mother of the two brothers suspected of carrying out the Boston bombings told ITV News they saw last year's race but are innocent.
Boston's marathon bombing suspect Dzohkhar Tsarnaev was charged with an offence that could lead to the death penalty, if he is found guilty.