Sooty flotsam in Hamilton Harbour is not a cause for concern, according environmental experts who said it was due to a technical problem on board a yacht.The Department of Environmental Protection said the problem onboard the super-yacht Mirabella V, moored off the Royal Bermuda Yacht Club, has caused the boat to spit out the non-toxic soot into the water.“The ongoing problem is currently being managed by both the Department of Environmental Protection and the Department of Marine and Ports, who stress there is no toxicity associated with the soot,” said a spokeswoman.“The Department of Environmental Protection conducted a site visit yesterday and have discovered that the problem is due to a malfunctioning generator.“Recovery efforts are being undertaken to clean up the soot. In the interim period the Mirabella V is moving west of Spanish Point which, with the prevailing south-westerly wind, will blow this material north easterly and out to sea.”