Just over half of all Americans say they approve of how President Donald Trump has handled North Korea, but only a quarter think that his summit this week with Kim Jong Un will lead to the denuclearization of the Korean Peninsula, according to a Reuters/Ipsos opinion poll released on Wednesday.

In a joint declaration following their meeting in Singapore on Tuesday, the North Korean leader pledged to move toward complete denuclearization of the peninsula and Trump vowed to guarantee the security of the United States' old foe. Forty percent of those polled said they did not believe the countries would stick to their commitments.

Another 26 percent said they believed the United States and North Korea would meet their commitments, while 34 percent said they did not know whether they would follow through.