Silver heads for second weekly profit in a row

Silver prices rose on Thursday, on track for the second weekly profit in a row as the dollar hovers near a seven-week trough, while demand rose on safe havens as shown in gold's advance. 

Silver last traded at $17.57 an ounce, up from the opening of $17.50, with an intraday high at $17.67, and a low at $17.49. 

Silver's current rise comes as the dollar settles near a seven-week low following weak U.S. unemployment claims data that raised concerns about the labor sector and the future of interest rates. 

Gold prices extended their gains as well on strong haven demand, specially after Fed Chair Yellen's speech steered off monetary policy, raising demand on silver as a safe haven.

The dollar index, tracking the greenback against a basket of currencies, last traded at 99.76, same as the opening, with a session-high at 99.87, and a low at 99.62.