Istanbul’s governor says an armed attack against a police guardpost outside the U.S. consulate in Istanbul left three attackers and three policemen dead.

Gov. Muammer Guler says the attackers’ identities are under investigation.

A U.S. Embassy spokeswoman says there were no reports of casualties among American consulate employees in Wednesday’s attack.

The spokeswoman says “at least one assailant opened fire on the Turkish police guardpost area near the main entrance to the consulate.” She requested anonymity because of the sensitivity of the matter.

THIS IS A BREAKING NEWS UPDATE. Check back soon for further information. AP’s earlier story is below.

ISTANBUL, Turkey (AP) _ Armed men opened fire on police at a guardpost outside the U.S. consulate in Istanbul, leading to a clash that a doctor says left two officers dead.

A U.S. Embassy spokeswoman says there were no reports of casualties among American consulate employees in the Wednesday morning attack.

The spokeswoman says “at least one assailant opened fire on the Turkish police guardpost area near the main entrance to the consulate.” She requested anonymity because of the sensitivity of the matter.

Ercan Ozgul, a doctor at the Istinye hospital, says two officers died in hospital.

There were conflicting reports about the total number killed or wounded in the attack. CNN-Turk television said two policemen and one attacker were killed in the clash.