Breaking reports are now saying they've uncovered 5 undetonated devices

[JaneyVee]

Plus they are searching for a Penske truck that tried to gain access to the parade route but was turned away right before bomb blasts.

All I have is a breaking news tweet so far: https://twitter.com/mpoppel/status/323958080029220865

ETA: They're saying that the bombs appear to have shrapnel or BBs attached, and that the undetonated devices will help the investigation.

ThinkProgress link: http://thinkprogress.org/politics/2013/04/15/1870161/boston-bombings-the-aftermath/#lbu-1366072760

[napi21]

1. I heard that but AFAIK they haven't been able to tie any of them

to the bombs. MSNBC has been reporting that several packages were found and destroyed. Not even sure what they were yet.

[Leslie Valley]

2. Michael van Poppel's Verified account

@mpoppel
President & founder of BNO News. Also founder of @BreakingNews, now owned by MSNBC.com.

[applegrove]

3. The way i heard it some news said there were 5 devices, two went off. And one of

the other three devices existence was denied by the police. So there were two found devices that did not go off.