Italy's competition authority has fined US tech giants and Apple a total of more than €200m for alleged anti-competitive cooperation in the sale of Apple and Beats products.

Contractual provisions of a 2018 agreement between the companies meant only selected resellers were allowed to sell Apple and Beats products on, the watchdog said.

This was in violation of European Union rules and affected competition on prices, it added.

Both Apple and Amazon said they plan to appeal against the fines.

The authority imposed a fine of €68.7m on Amazon and €134.5m on Apple.

It also ordered the companies to end the restrictions to give retailers of genuine Apple and Beats products access to in a non-discriminatory manner.

"To ensure our customers purchase genuine products, we work closely with our reseller partners and have dedicated teams of experts around the world who work with law enforcement, customs and merchants to ensure only genuine Apple products are being sold," Apple said.

It also denied any wrongdoing.

In a separate statement, Amazon said it strongly disagreed with the decision of the Italian authority and that the proposed fine was "disproportionate and unjustified".

"We reject the suggestion that Amazon benefits by excluding sellers from our store, since our business model relies on their success," Amazon said.

"As a result of the agreement, Italian customers can find the latest Apple and Beats products on our store, benefiting from a catalogue that more than doubled, with better deals and faster shipping," it added.