Turkish President Recep Tayyip Erdogan has launched a new tirade against the US, criticizing its support for Kurdish fighters in Syria and a series of other thorny bilateral issues.

Erdogan slammed Washington Thursday for giving "weapons for free to a terror organization," a reference to the YPG, a key US ally in the fight against ISIS in Syria. The US and Turkey have been at loggerheads for more than a week, following the arrest of a US consular staff member in Turkey. Metin Topuz, a Turkish national who works for the US consulate in Istanbul, is the second US staff member in Turkey to be detained this year.