The World Health Organization (WHO) has proposed a second phase of studies in China into the origins of the coronavirus, including audits of laboratories in Wuhan, but there is no sign yet that Beijing would accept a further international probe, diplomats said.

WHO director-general Tedros Adhanom Ghebreyesus presented the plan to member states at a closed-door meeting on Friday, a day after saying that investigations were being hampered by the lack of raw data on the first days of spread in China...