A government source said, on condition of anonymity, that the German ambassador to Chad was seen as "interfering too much" in the governance of the country.
The discovery of the bodies came about 24 hours after a blast brought down the four-storey building in the Mediterranean port city of France's Marseille.
The IMF foresees 2.8 percent growth for the global economy, down from 2.9 percent in its previous report after sharp downward revisions for Japan and emerging markets.
