BAGHDAD — Vice President Dick Cheney said Wednesday that Iraq remains a dangerous place, a point underscored by a thunderous explosion that rattled windows in the U.S. Embassy where he spent most of the day.

After talks with Iraqi military and political officials, the vice president said Iraq's leaders seem to have a better sense now that they need to do more to reconcile sectarian and political differences.

"I think they recognize it's in their interests as well as ours to make progress on the political front," Cheney said.

"They do believe we are making progress but we have a long way to go," the vice president said.

Cheney spoke less than an hour after an explosion could be heard in the U.S. Embassy where he spent most of the day. Windows rattled and reporters covering the vice president were briefly moved to a more secure area.

Said Cheney spokeswoman Lea Anne McBride: "His meeting was not disturbed and he was not moved."

Asked about security in Baghdad, Cheney told reporters, "I have to rely on reports, because obviously I spent the day here basically in our embassy in the Green Zone."

But he said based on conversations he had throughout the day, Iraqi leaders felt that sectarian violence was "down fairly dramatically."

"I think everybody recognizes there still are some security problems, security threats, no question about it," Cheney said.

In Washington, White House counselor Dan Bartlett said President Bush wanted Cheney to travel to Baghdad to press upon Iraqi leaders the need to quickly pursue reconciliation measures and meet the benchmarks set by them and Washington.

"This gives an opportunity at a very high level for this message to be delivered," Bartlett said.

The White House also said Bush would veto any bill drafted by House Democratic leaders that would fund the Iraq war only into the summer months. Defense Secretary Robert Gates said such short-term funding would be very disruptive and "have a huge impact" on contracts to repair and replace equipment.

The blast in Baghdad struck about 6:25 p.m. local time, just half an hour before Cheney's wrap-up news conference. It appeared to strike in the vicinity of the heavily fortified Green Zone, which contains the U.S. and British embassies and many Iraqi government buildings.

Earlier, Cheney met with Iraqi Prime Minister Nouri al-Maliki. The prime minister said they discussed "practical steps ... to support our efforts working on both the security front as well as the domestic political issues."

Al-Maliki is coming under increasing pressure from Washington to demonstrate progress in easing sectarian violence, and Cheney's unannounced visit to Iraq was depicted by U.S. officials as an attempt to press al-Maliki and other Iraqi leaders to do more to achieve reconciliation among factions.