Beijing's top trade official says China and the United States have agreed to work on extending a deadline for new tariffs on each other after two days of trade talks in Stockholm.

The latest round of talks opened Monday and concluded Tuesday in Stockholm to try to break a logjam over tariffs that have skewed the pivotal commercial ties between the world's two largest economies.

Trump started hiking tariffs on Chinese goods shortly after his return to the White House. China ultimately responded with tariffs of its own. Tensions escalated, with tariff rates hitting the triple digits, before a trade truce in May.