BERLIN &#8212 Three suspected Islamic terrorists from an al-Qaida-influenced group nursing “profound hatred of U.S. citizens” were arrested on suspicious of plotting imminent, massive bomb attacks on U.S. facilities in Germany, prosecutors said Wednesday.

German Federal Prosecutor Monika Harms said the three, two of whom were German converts to Islam, had trained at camps in Pakistan run by the Islamic Jihad Union, a group based in Central Asia.

They had obtained some 1,500 pounds of hydrogen peroxide for making explosives.

“We were able to succeed in recognizing and preventing the most serious and massive bombings,” Harms told reporters.

Harms declined to name specific targets, but said the suspects had an eye on institutions and establishments frequented by Americans in Germany, including discos, pubs and airports.

Sudwestfunk television, citing unnamed security sources in Berlin, reported that Frankfurt international airport and U.S. Ramstein Air Base were among the targets.

Defense Minister Franz Josef Jung, appearing on a morning ARD television show, was asked if the airport and U.S. base were targeted.

“I ask you to understand that I cannot say anything about the details.

But I will say again, our security forces were very active here and in my view did very good work,” Jung said.

He also said: “I can only say that our security forces did very good work in that this action tonight was possible, it also shows how direct the threat situation was.”

Later, Interior Minister Wolfgang Schaeuble was asked about the reports and said that “we don’t know exactly what the targets of the attacks were.”

The suspects, delivered by helicopter, made a first appearance at a closed hearing at the Federal Court of Justice in Karlsruhe, which ordered them held pending trial.