The German foreign ministry said in a statement here that it "sadly confirms that two German tourists died in the attack" at Hurghada holiday resort, renowned for its scuba diving.
Reports previously said the two women were Ukrainian nationals.
Four other women were injured in yesterday's attack.
The attacker had swum ashore from another beach, according to Egypt's interior ministry.
He has been arrested and is being questioned to ascertain the motive behind the attack.
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