A police car was petrol-bombed in Belfast while an officer was inside the vehicle, outside the Belfast office of Alliance MP Naomi Long.
A police officer was also waiting outside the vehicle. Both officers escaped unhurt.
ITV News's Marc Mallett reports:
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Mladic, now 75, was the military commander of Bosnian Serb forces in the 1990s, who fought against the Bosnian Croat and Bosniak armies.
Weather: Heavy rain and strong winds in the north
His representatives said Cassidy, who was hospitalised last week, died "surrounded by those he loved."