BERLIN, Sept 6 (Reuters) - Germany is planning a broad package of measures to strengthen its defences against drone attacks, cyber intrusions and other forms of Russian sabotage after a failed airport drone attack last month,

German officials say a drone carrying explosives was sent to the Leipzig airport and blamed Russia, which strongly denied the accusations.

A climate extremist has been arrested on suspicion of carrying out a series of sabotage attacks on Germany's electricity grid last week.

German officials have said Russia was behind the explosive-laden drone that was found near a runway at a German airport last month.

Kyiv seeks to weaken its larger enemy by hitting refineries, shipping terminals and e-commerce warehouses. The costs are adding up.