No, according to the Council on American-Islamic Relations (CAIR):

A prominent national Islamic civil rights and advocacy group today called on media professionals not to refer to seven terror suspects arrested in Miami as "Muslims."

The Washington-based [CAIR] said media reports indicate that the suspects are part of a sect called "Seas of David"....

CAIR called on police departments nationwide to protect mosques and other Islamic institutions from any possible backlash prompted by the mistaken linkage of this case to the American Muslim community. [Link]