TEHRAN, August 1 (Saba) -- Iranian Foreign Ministry Spokesman Ramin Mehmanparast on Sunday dismissed that Iran will surrender to political pressure over the three detained Americans, the local satellite Press TV reported, according to Xinhua.

Mehmanparast said, "they (the detained Americans) should be held accountable for their illegal entrance into the country," the report said.

"The three American citizens were arrested in July 2009 on suspicion of illegal entrance into Iran's soil. So, their offense is obvious and they should be held accountable before the court of law like any other individual," Mehmanparast was quoted as saying.

"Any effort to affect the judicial case of the detainees through political pressure or media propaganda ... will have no impact on the independent approach of Iran's judiciary," he added.

On Friday, U.S. President Barack Obama called on Iranians to release the three detained Americans and said that the continued detention is "unjust."

The three Americans, Sarah Shourd, Josh Fattal and Shane Bauer, were arrested in Iran on July 31 last year after they illegally entered the country from its western borders.

They were charged with espionage last November, which the U.S. government considered totally unfounded and said they should be freed.

Saba