Turkish security forces have arrested four people in connection with the suicide bombing in Istanbul in which 10 German tourists were killed, Turkish prime minister Ahmet Davutoglu has said.
Tuesday's blast in Sultanahmet Square killed 10 German tourists and wounded 15.
Turkish authorities have detained three Russian nationals suspected to have links to the so-called Islamic State following a suicide bomb attack in Istanbul on Tuesday.
Ten people were killed in the blast at Istanbul's historic Sultanahmet Square, an area popular with tourists.
The Russian Consulate in Turkey has confirmed the detentions, according to Russian media.
The Democratic presidential candidate may also have shown his cards on his choice of running mate.
The US president also shared a post on Twitter accusing Dr Anthony Fauci of misleading the public over hydroxychloroquine.
Fears over an impending second wave of coronavirus dominates Wednesday’s front pages.