ATHENS, Greece -- Strikes and demonstrations against Greek austerity measures hit the capital Athens on Tuesday, as international debt inspectors returned to decide whether the country's reforms are strong enough for it to secure a vital bailout.

The officials from the European Union, European Central Bank and International Monetary Fund, which are lending money to Greece to keep it from bankruptcy, are expected to press the government for faster cost-cutting reforms.

Greece's continued access to bailout loans depends not only on delivery on its austerity promises but also on negotiations with private creditors on a bond swap deal aiming to cut its debt by euro100 billion ($127 billion). It needs to get an agreement soon if it is to secure more rescue loans, with a bond repayment of euro14.5 billion due in late March.

Some 10,000 protesters took part in rallies in central Athens over potential pay cuts in the recession-battered private sector. Anti-austerity strikes in the capital disrupted public transport and other services. Journalist unions also launched a 48-hour strike.

Police said a plain-clothed officer from the anti-terrorism division was beaten and seriously injured by a group of some 30 protesters who took his handgun. The rally was otherwise peaceful.

Under government pressure, unions and employers are due to launch talks Wednesday to explore ways of slashing labor costs. Lower-level members of the debt of the debt inspection team started the talks in Athens on Tuesday, with the mission chiefs due Friday.

Meanwhile, Greece saw its borrowing rates ease marginally in a bill auction on Tuesday. Unable to issue long-term debt due to untenably high borrowing interest rates of 33 percent, the country maintains a market presence through regular treasury bill auctions.

The public debt agency said it raised euro1.625 billion ($2.06 billion) in a sale of 13-week treasury bills, an interest rate of 4.64 percent, compared with 4.68 percent in the last such auction in December.

Demand for the bills was 2.90 times the amount on offer, roughly the same as last month.