Sisters of Boston Bombing Suspects Express Sorrow

The sisters of the two Boston Marathon bombing suspects say it saddens them "to see so many innocent people hurt after such a callous act."

Ailina and Bella Tsarnaeva issued a brief statement Tuesday through their attorneys. The statement says their hearts go out to the victims.

It also says they have no answers and look forward to a thorough investigation.

Ailina Tsarnaeva lives in West New York, N.J., with her husband and baby. She has not emerged from her apartment building in days.

The apartment remained under police guard Tuesday as the sisters asked that their privacy be respected.

Their statement was the first comment from either sister since the capture Friday night of the younger of their two brothers