He's also played down hopes for direct talks between the US and North Korea as touted by his own Secretary of State Rex Tillerson.
In response, US President Donald Trump said the US military is "locked and loaded" to deal with North Korea's provocations and North Korea would be met with "fire and fury" if it continued to threaten Washington.
Mr Trump is expected to send a "significant message" to North Korea either verbally or "kinetically" during the trip, Yonhap said, without elaborating on what that may mean.
The White House dispatched an advance team of working-level officials in late September to check candidate sites for Trump's "special activity" here, according to the source.
South Korea is keen to develop blackout bombs against North Korea due to its non-lethal nature and it will not cause any harm to the innocent individuals.
"He may instead visit frontline islands such as Yeonpyeong-do or Baengnyeong-do".More news: Taylor leads Badgers to victory in Nebraska
Trump is scheduled to visit Japan, South Korea, China, Vietnam and the Philippines next month.
The new weapon is being developed under South Korea's Kill Chain pre-emptive strike program, an initiative exclusively aimed to detect and intercept missiles from North Korea within the shortest time. Trump has rejected the possibility of talks and stressed the need for increased pressure and perhaps the application of military force. Both of those locations are in the DMZ, which was created at the end of the Korean War.
Trump has repeatedly warned North Korea that a military option is on the table.
"The Kaesong Industrial Complex is clearly an area in which we exercise our sovereignty, and consequently it's none of [South Korea's] business what we do there", said DPRK Today, a North Korean foreign propaganda website, on October 8.