As usual, take these initial reports with a grain of salt. Or several.
Seven IEDs have been recovered so far, some in Watertown and some at the house in Cambridge, police officials tell @NBCNews
— @RockCenterNBC via TweetDeck
Other than that report, the situation is largely unchanged in (the public reports of) the search for Boston Marathon bombing suspect Dzhokhar Tsarnaev.
1:49 PM PT (Jed Lewison): Despite earlier reports, police are no longer searching for any accomplices, according to a report earlier on NBC. Their search remains solely focused on Dzhokhar Tsarnaev.
2:07 PM PT (Jed Lewison): Authorities are planning a 5:30 PM ET briefing according to CNN.