The major European gas pipeline hub in Austria that suffered a deadly explosion on Tuesday has resumed pumping gas abroad, its operator said Wednesday.

"All transit connections were put into operation again before midnight and are 100-percent operational," Harald Stindl, Gas Connect Austria chief, told Oe1 public radio.

The explosion at the Baumgarten site on Tuesday killed one person and left 18 others injured, including one seriously. The cause is currently being investigated.

The compressor station in eastern Austria is one of Europe's main entry points for Russian gas and pumps it onwards to other countries including Italy and Germany.

It handles around 40 billion cubic metres of gas per year, or six million cubic metres per hour, equating to some 10 percent of the continent's needs.