North Korea tensions cooled off over the past few weeks but have resurfaced to unnerve investors once again. This is especially true given that the regime launched a missile that flew over Japan and landed in the Pacific Ocean in the morning. This has sparked warnings in the northern part of the country, urging people to take shelter.

Japanese Prime Minister Shinzo Abe condemned the launch as an “unprecedented and grave threat” to the country’s security. Donald Trump and Shinzo Abe vowed to increase pressure on North Korea, sparking worries of fresh tension between Washington and Pyongyang.

North Korea missile tests have been a matter of concern for several months. This tension escalated earlier this month, when Donald Trump and North Korean official Kim Jong Un had engaged in a war of words. Trump previously warned that North Korea would face “fire and fury like the world has never seen” if it continues to threaten the U.S. and North Korea retaliated by warning of a missile strike on the U.S. Pacific territory of Guam, which is home to a large U.S. military base.

The renewed North Korean fear has dampened the appeal for riskier assets once again. However, the macro fundamentals painted a rosier picture of the stock market thanks to strong corporate earnings, still low interest rates, an impressive labor market, higher consumer spending and improving health of economies around the world.

Amid signs of flared-up North Korea tension, investors should protect their portfolio with low volatility ETFs. This is because these products have the potential to outpace the broader market providing significant protection to the portfolio. These funds include more stable stocks that have experienced the least price movement in their portfolio. Further, these allocate more to defensive sectors that usually have a higher distribution yield than the broader markets.

As such, we present four ETFs that could be solid options for investors in the current choppy market.