The Swiss Foreign Ministry says Iran and the United States will hold a second round of talks over Tehran’s nuclear program this week. Oman — which welcomed a first round of indirect talks on Feb. 6 — will host the talks in Geneva. The ministry did not specify which days. U.S. President Donald Trump has warned Iran against any failure to reach an agreement, and has repeatedly threatened to use force to compel Tehran to agree to limit its nuclear program. Iran has insisted the program is for peaceful purposes. However, its officials increasingly threaten to pursue a weapon.