NATO released photographs Saturday of what it said were suspected Russian tanks in eastern Ukraine, having warned earlier that confirmation of their presence would mark a "serious escalation" of the crisis.
Sudan's powerful intelligence service on Thursday said it had disrupted a "plot" to disturb the country's security, as a witness saw tanks moving in the streets of the capital.
Syrian troops with tanks and helicopters slaughtered more than 150 people in a central village, rights activists said on Friday, prompting the opposition to call for urgent UN intervention.