SAN JUAN, Puerto Rico - Puerto Rico will skip payments on some of its debt due Monday, the island's second default this year, but will remain current on its most important debt, Governor Alejandro Garcia Padilla said on Wednesday.

The Caribbean island will pay $328.7 million in general obligation (GO) debt due on Jan. 4, the governor told reporters at a news conference. Default on GO debt would have been seen as a more serious move because those bonds have the strongest legal protections of any of the island's obligations.

However, it also keeps alive the drama surrounding its deteriorating finances as investors wait for the next shoe to drop. The governor said he is meeting with creditors in early January, though he did not give a specific date.

When asked about the shutdown of key government services, Garcia Padilla told reporters, "We have to do all we can to avoid that situation."

The island will default on a $35.9 million payment due on Monday to its Infrastructure Finance Authority (PRIFA). It will also default on $1.4 million due to its Public Finance Corp, but will make payments to most other authorities. The island was facing a bill of about $1 billion had it made all payments.

Garcia Padilla said about $163 million of the GO payment came from clawing back revenues from several agencies, including the highway authority, the convention center authority and the island's busing authority. Padilla on Dec. 1 granted the U.S. territory power to take revenues from those agencies to keep payments on GO debt current.

The U.S. commonwealth, suffering from a near decade-long recession with a 45 percent poverty rate and a shrinking tax base due to people leaving the island, first defaulted in August when it failed to make the full payment on its Public Finance Corp (PFC) bonds.

This announcement now opens the door to litigation from holders of defaulted bonds. Garcia Padilla said at the news conference that while some funds say he is in non-payment, he argued that the island's Constitution allows for this action to "protect Puerto Ricans."

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He once again railed against "vultures" seeking to profit from the island's debt woes, and accused them of influencing the U.S. Congress not to act to help Puerto Rico.

Garcia Padilla has said the $70 billion in debt outstanding is not payable and requires restructuring. Puerto Rico has been negotiating with creditors to try and persuade them to take a reduction.

Puerto Rico's plight has gained increasing attention in Washington D.C., where the U.S. Treasury has been pushing Congress to allow the island to restructure its debts under U.S. bankruptcy law. The House is expected to hold a Jan. 5 hearing on Puerto Rico's financial problems.

At his press conference, Garcia Padilla urged Congress to act soon.

Puerto Rico's general obligation debt carrying an 8 percent coupon and maturing in 2035 last traded on Tuesday with an average price of 71.726 cents on the dollar.

A creditor-side source told Reuters on Tuesday that some creditors were preparing possible lawsuits in the event of default, but it was unclear how quickly they could be filed.

Maintaining the GO payment avoids the messy possibility of defaulting on debt backed by constitutional guarantees and considered the class with the strongest legal protection for investors. Its next test on GO debt is not until July, when it faces a payment of approximately $1.9 billion.

million, which includes $94 million that was diverted prior by the governor's executive order authorizing clawbacks, be deposited immediately into PRIFA's Sinking Fund held by the trustee.