Israeli police on Thursday recommended bribery charges against Prime Minister Benjamin Netanyahu's lawyer and five other suspects in a sale of German Thyssenkrupp submarines to Israel.

Netanyahu was questioned by police in the investigation but, in a statement announcing its conclusion, police reiterated that the prime minister is not a suspect.

The two billion euro deal ($2.99 billion Cdn) for three submarines and four patrol vessels has been the subject of a corruption investigation since 2016 after Israel's Channel 10 TV reported that David Shimron, Netanyahu's personal lawyer and a distant relative, also represented the local agent of Thyssenkrupp Marine Systems, raising concerns of a conflict of interest.

"I did not commit any crime," Shimron told Israel's YNet news website, which asked him about the police recommendations to prosecutors and posted an audio clip of his comments.

Shimron's lawyer, in a statement to Reuters, denied any wrongdoing by his client, saying he was not involved in the submarine deal.

"Our information comes so far only from the press, we do not yet have any confirmed information," a spokesperson for Thyssenkrupp said in a statement. "As soon as we know all the facts, we will examine further measures within the framework of legal possibilities."

The other suspects facing possible indictment include retired senior naval officers and former government officials.

Netanyahu has been named as a suspect in three other corruption investigations. In February, police recommended charging him with bribery in the first two. Israel's attorney general is weighing whether to indict him.