Wall St closed lower on Friday as investors maintain concerns over US interest rates. The Dow Jones fell 0.7%, the S&P500 lost 1.32% and the tech-heavy Nasdaq dropped 2.24%.Investor concerns for US interest rates rose, when Federal Reserve Chair, Jerome Powell, commented that the central bank “wasn’t in a hurry” to cut interest rates.Over in Europe, markets closed lower, recording a fourth consecutive weekly decline. The STOXX600 fell 0.76% with media stocks dropping 3%, whilst mining sto...