[mvonfr]

Police is blocking mobile phones around the area.

Could they set off car bombs using cell phones???

"Mobile" was a translation; unsure what they really meant; they may be taking down all phones.

Car bombs? -- I do not see how this is relevant. I think they are afraid of additional teams.

[BrooklynGOP]

"Mobile" was a translation; unsure what they really meant; they may be taking down all phones.

No, "mobile" means a cell phone.