ANKARA - The United States Embassy to Turkey warned its citizens on Tuesday about terrorist threats to tourist areas in Turkey.

"The US government continues to receive credible indications that terrorist groups are seeking opportunities to attack popular tourist destinations throughout Turkey," the embassy in Ankara said in a statement to US citizens on its website on April 26.

"Foreign tourists in Turkey have been explicitly targeted by terrorist organizations, and advises US citizens to be mindful of the potential for danger in crowded public areas and at popular tourist destinations," the US embassy said in a statement.

The US Embassy in Ankara issued a security warning to US citizens in Turkey on April 9 this year, saying that there are credible threats to tourist areas in Istanbul and Antalya.

Turkey has been hit by four suicide bombings already this year, two in capital Ankara and two in Istanbul.