MADRID — Spain on Saturday started border checks on travelers arriving from Italy, responding to similar measures Rome imposed following a massive migrant rush into the Spanish North African enclave of Ceuta.

Spain threatened Italy with countermeasures Friday if it does not swiftly lift border checks introduced after the mass migrant rush to Ceuta – drawing a

Spain has threatened reciprocal measures against Italy over border controls. Rome imposed these checks after a migrant influx into the Spanish enclave of Ceuta. Spain called…