Turkey yesterday issued a travel warning urging its citizens to reconsider their travel plans to the United States, citing the risk of terror attacks and arbitrary detentions.

The move follows a US State Department advisory on Wednesday which urged Americans to reconsider visiting Turkey due to security concerns.

A statement by the Turkish foreign ministry -- using almost identical language to the original US advisory -- warns of an increase in terrorism and "risk of arbitry detention" in America.

Relations between the two Nato allies have become increasingly strained over a number of issues, including Turkey's detention of two Turkish employees of US diplomatic missions in the country.