Missouri Sen. Claire McCaskill said she would do everything possible to "stop the sale" of Anheuser-Busch to rival brewer InBev NV, according to reports.

Speaking with reporters after a meeting with senior officials of InBev yesterday (17 June), McCaskill said she was "unaware if Anheuser-Busch investor Warren Buffett has endorsed InBev's plan to buy Anheuser-Busch for US$65 a share, or about $46.3bn", reported Reuters.

She said that the jobs and pension plans of workers now employed at Anheuser-Busch's operations in Missouri was a "concern" to her.

InBev would not confirm details when contacted by just-drinks today, but said: "There has been a meeting with decision makers and it is important to listen to concerns."

According to European press reports yesterday, Warren Buffett, a 4.9% stakeholder in A-B, is believed to be in favour of InBev's bid.

The daily De Standaard cited unnamed sources as saying the investor and Anheuser shareholder is backing the Belgian bid.

It is understood that Buffett is planning to speak this week with A-B president and CEO August Busch IV about the offer.