India's DRDO was in the process of developing hypersonic missiles for the defence forces of the country, who are now looking to induct long range cruise and ballistic missiles like the 2,000 km range Nirbhay and 400 km range Pralay missiles.
The US Indo-Pacific Command in statement said it was aware of Pyongyang's "ballistic missile launches and are consulting closely" with South Korea and Japan, as well as other regional allies and partners.
A uranium enrichment facility is used to produce highly enriched uranium by placing uranium in centrifuges and spinning it at high speeds. Highly enriched uranium is essential for the manufacture of nuclear warheads.
The US State Department imposed sanctions on China-based firms, for their supply to Pakistan's ballistic missile program under the missile sanctions laws on Thursday.
The UK government announced new measures against Iran and Russia, following the Iranian regime's transfer of ballistic missiles to Russia for use on the battlefield in Ukraine.
Ukrainian President Volodymr Zelenskyy on Tuesday said that over 180 people were injured and 41 people died as a result of a Russian attack on the city of Poltava.
In the statement, US Central Command said that these weapons posed a "clear and imminent threat" to US and coalition forces and merchant vessels in the region.
Korean Central News Agency report made no mention of the second missile. It also did not elaborate on the nature of the simulated warhead, like where the missile launched from and where it landed.
Monday's launches came a day after Pyongyang promised "offensive and overwhelming" responses to new military drills staged by the United States, South Korea and Japan.