UNITED NATIONSinfo-icon: - Chinainfo-icon prevented a United Nations Security Council committee on Wednesday from blacklisting the head of Pakistaninfo-icon-based militant group Jaish-e-Mohammad (JeM), which said it attacked an Indian paramilitary convoy in disputed Kashmirinfo-icon.

The Feb. 14 attack that killed at least 40 Indian paramilitary police, making it the deadliest in Kashmir during a 30-year-long insurgency, increased tensions between Pakistan and Indiainfo-icon. The nuclear-armed neighbours both said they had shot down each other's fighter jets late last month.

The United Statesinfo-icon, Britaininfo-icon and Franceinfo-icon asked the Security Council's Islamic Stateinfo-icon and al Qaeda sanctions committee to subject JeM leader Masood Azhar to an arms embargo, travelinfo-icon ban and asset freeze. The 15-member committee operates by consensus.

China placed a "technical hold" on the request, according to a note from China's U.N. mission to the committee, seen by Reuters. China gave no reason for the hold, which places the request in limbo.

China had previously prevented the sanctions committee from sanctioning Azhar in 2016 and 2017.

Chinese Foreign Ministry spokesman Lu Kang said earlier on Wednesday that "discussions on this issue must be conducted following the rules and procedures of the U.N. Security Council and its subsidiary bodies."

A U.N. Security Council diplomat, speaking on condition of anonymity, said that if China continued to prevent the designation of Azhar then other council members "may be forced to pursue other actions at the Security Council."

"The case for designating Masood Azhar - the leader of a group the U.N. already calls an al-Qaeda-affiliated terrorist organisation - is undeniable," the diplomat said.

Another way for western powers to blacklist Azhar would be through the adoption of a Security Council resolution, which needs nine votes in favour and no vetoes by Russiainfo-icon, China, the United States, Britain or France to pass.

Reacting to the development, the ministry of external affairs in New Delhiinfo-icon expressed disappointment.

"We are disappointed. We will continue to pursue all available avenues to ensure that terrorists involved in attacks on Indian citizens are brought to justice," the MEA said.

"We are grateful to all countries who supported the bid to designate Azhar as global terrorist," it said.

India's Ambassador and Permanent Representative to the United Nations Syed Akbaruddin said in a tweet: "Big,Small & Many...1 big state holds up, again...1 small signal @UN against terror. Grateful to the many states - big & small - who in unprecedented numbers, joined as co-sponsors of the effort."

JeM is a primarily anti-India group that forged ties with al Qaeda and was blacklisted by the U.N. Security Council in 2001. In December 2001, Jaish fighters, along with members of another Pakistan-based militant group, Lashkar-e-Taiba, attacked India's parliament, which almost led to a fourth warinfo-icon between the two countries.