Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Officials Long Warned of Explosive Chemicals at Beirut Port Associated Press BEIRUT, LEBANON - At least 10 times over the past six years, authorities from Lebanon's customs, military, security agencies and judiciary raised alarm that a massive stockpile of explosive chemicals was being kept with almost no safeguard at the port in the heart of Beirut, newly surfaced documents show. Yet in a circle of negligence, nothing was done -- and on Tuesday, the 2,750 tons of ammonium nitrate blew up, obliterating the city's main commercial hub and spreading death and wreckage for miles around. President Michel Aoun, in office since 2016, said Friday that he was first told of the dangerous stockpile nearly three weeks ago and immediately ordered military and security agencies to do "what was needed." But he suggested his responsibility ended there, saying he had no authority over the port and that previous governments had been told of its presence. "Do you know how many problems have been accumulating?" Aoun replied when a reporter pressed whether he should have followed up on his order. The documents surfacing in social media since the blast underscore the corruption, negligence and incompetence of Lebanon's long-ruling political oligarchy, and its failure to provide its people with basic needs, including security. Investigators probing the blast have focused on personnel at the Port of Beirut, Lebanon's main port, so well known for corruption that its common nickname is Ali Baba's Cave. So far, at least 16 port employees have been detained and others questioned. On Friday, investigators questioned and then ordered the detention of the head of the port, Hassan Koraytem, the country's customs chief, Badri Daher, and Daher's predecessor. But many Lebanese say the rot permeates the political system and extends to the country's top leadership. The explosion of the ammonium nitrate, after apparently being set off by a fire, was the biggest in Lebanon's history. The known death toll reached 154, including bodies recovered from the rubble Friday, and more than 5,000 people were wounded. Billions of dollars in damage was caused across the city, where many are too impoverished by Lebanon's financial crisis to rebuild. .