The Latest: Russia rejects 'ultimatums' over spy poisoning

Police officers position a screen outside the vehicle recovery business "Ashley Wood Recovery" in Salisbury, England, Tuesday, March 13, 2018. The use

Police officers position a screen outside the vehicle recovery business "Ashley Wood Recovery" in Salisbury, England, Tuesday, March 13, 2018. The use

Investigators in protective suits work at the scene near the Maltings shopping centre in Salisbury, England, Tuesday, March 13, 2018. The use of Russi

Investigators in protective suits work at the scene near the Maltings shopping centre in Salisbury, England, Tuesday, March 13, 2018. The use of Russi

Investigators in protective suits work at the scene in the Maltings shopping centre in Salisbury, England, Tuesday, March 13, 2018. The use of Russian

Investigators in protective suits work at the scene in the Maltings shopping centre in Salisbury, England, Tuesday, March 13, 2018. The use of Russian

Russian Foreign Minister Sergey Lavrov smiles during a meeting with South Korean head of National Security Chung Eui-yong at the Russian foreign minis

Russian Foreign Minister Sergey Lavrov smiles during a meeting with South Korean head of National Security Chung Eui-yong at the Russian foreign minis

LONDON (AP) — The Latest on the poisoning of a former Russian spy in England (all times local):

10:10 a.m.

The Kremlin says Russia rejects the deadline that Britain gave it to explain any involvement in the poisoning of an ex-Russian spy.

Sergei Skripal and his daughter remain in critical condition in hospital after being exposed to a military-grade nerve agent in the city of Salisbury last week.

Dmitry Peskov, spokesman for President Vladimir Putin, told reporters on Wednesday that Russia "rejects the language of ultimatums" after British Prime Minister Theresa May gave Russia until the end of Tuesday to explain how the Soviet-made nerve agent came to be used to target the ex-spy.

Peskov said Britain has so far only offered "baseless accusations which are not backed up by any evidence" and said Russia would cooperate with the investigation but does not see Britain's willingness to reciprocate.

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8:55 a.m.

Britain's prime minister is set to chair a meeting of the national security council Wednesday to consider sanctions against Russia after Moscow ignored a deadline to explain how a nerve agent developed by the Soviet Union was used to target a former spy in England.

Theresa May is weighing a range of economic and diplomatic measures against Russia Wednesday in response to the assault on Sergei and Yulia Skripal. The father and daughter remain in critical condition in a Salisbury hospital

Moscow says it won't comply with Britain's demands unless the government provides samples of the poison collected by investigators. Russia's embassy in the U.K. warned Tuesday that any sanctions would "meet with a response."