Update: Madrid: 5 arrests made

Five arrests have been made against suspects of the Madrid bombings. Three were of Moroccan origin and two are Spaniards with Hindu backgrounds. This was reported by AP a short while ago.

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AP also reports:

The five were arrested in connection with a cell phone inside an explosives-packed gym bag found on one of the bombed commuter trains.

The suspects “could be related to Moroccan extremist groups,” the minister said. “But we should not rule out anything. Police are still investigating all avenues. This opens an important avenue.”