According to a new report, authorities suspect that the Tsarnaev brothers were planning on launching another attack in New York.

Via Ynet:

US authorities learned that the Tsarnaev brothers, who were behind the bombing at the Boston Marathon last week, were planning to carry out another attack in New York once they left Boston.The Boston Globe reported on Wednesday that Tamerlan (26) and Dzhokhar (19) Tsarnaev did not succeed in carrying out their plans only because they were tracked down by Massachusetts authorities a few days after the marathon attack.

After carrying out the Boston bombing, in which three people died and over 200 were injured, the brothers still possessed several homemade grenades and an explosive laden pressure cooker.

A man who had been kidnapped by the brothers as they fled authorities told police that the brothers had planned to travel to New York.

The victim who had his vehicle carjacked claims that he could make out the word ‘Manhattan’ in the brothers conversations.

Armed with that much firepower, authorities took the threat seriously.  According to CBS, Amtrak service was halted from Boston to New York, while an extensive search of the trains was conducted.