France's interior minister is holding talks with his Turkish counterpart to "improve communications" after a mix-up in which three suspected French jihadis who had traveled to Syria were sent home by police in Turkey without French police knowing about it.

Bernard Cazeneuve told reporters on his arrival in Ankara Friday that France and Turkey need to put in place "more efficient procedures" concerning the extradition of French nationals.

French authorities estimate 900 citizens or residents of France have planned to go to Syria and Iraq to wage jihad, the largest figure for any country in Europe. Many fly to Turkey and then cross into Syria.

Turkey says recent information-sharing by source countries helped Turkey in its effort to stem the flow.