TEHRAN, Iran (AP) — Tehran has deployed one of its Russian-made submarines in the Persian Gulf, just days after the United States and more than two dozen allies began naval exercises nearby, Iranian state television reported Tuesday.

The Taregh-1 joined the Iranian fleet in the southern port of Bandar Abbas after it was overhauled earlier this year, according to the TV report. It’s one of three Russian Kilo class submarines that Iran obtained in the early 1990s.